United States v. Ferdinand Mediko ( 2022 )


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  • USCA11 Case: 20-14461      Date Filed: 11/23/2022   Page: 1 of 58
    [DO NOT PUBLISH]
    In the
    United States Court of Appeals
    For the Eleventh Circuit
    ____________________
    No. 20-14461
    ____________________
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    versus
    FERDINAND MEDIKO,
    a.k.a. Fred Mediko,
    MONIKA MEDIKO,
    PAULINE MEDIKO BADIKI,
    Defendants-Appellants.
    ____________________
    Appeals from the United States District Court
    for the Northern District of Georgia
    USCA11 Case: 20-14461           Date Filed: 11/23/2022       Page: 2 of 58
    2                         Opinion of the Court                    20-14461
    D.C. Docket No. 1:17-cr-00342-ELR-AJB-2
    ____________________
    Before JORDAN and ROSENBAUM, Circuit Judges, and SCHLESINGER,*
    District Judge.
    PER CURIAM:
    Defendants-Appellants Pauline Badiki, her brother Ferdi-
    nand Mediko, and his wife Monica Mediko were convicted of fraud
    and conspiracy to commit fraud. Their convictions stem from their
    involvement in buying Special Supplemental Nutrition Women,
    Infants and Children (“WIC”) vouchers for cash from WIC recipi-
    ents and then collecting the funds for those vouchers from the fed-
    eral government. Appellants accomplished the purchase of the
    vouchers through their family business, Poly-Plex Pharmacy lo-
    cated in Atlanta, Georgia. Although Appellants raise various issues
    on appeal, after a thorough review of the record, and with the ben-
    efit of oral argument, we affirm their convictions and sentences.
    I.      Background
    Under the WIC program, the United States Department of
    Agriculture uses funding to provide supplemental food, health-care
    referrals, and nutrition for low-income pregnant and postpartum
    women, and children up to age five who are considered
    * The Honorable Harvey Schlesinger, United States District Judge for the Mid-
    dle District of Florida, sitting by designation.
    USCA11 Case: 20-14461          Date Filed: 11/23/2022        Page: 3 of 58
    20-14461                 Opinion of the Court                             3
    nutritionally at risk. WIC recipients use WIC vouchers to pay for
    identified food products and prescription baby formula. More spe-
    cifically, recipients use paper vouchers for certain food items and
    for indicated maximum dollar amounts. When a vendor accepts a
    WIC voucher, it writes redemption amounts matching the shelf
    price of the item, on the voucher. The vendor provides the item,
    stamps the voucher, and the recipient signs it, allowing the vendor
    to deposit the voucher for currency that the United States pays.
    Poly-Plex became an authorized store accepting WIC
    vouchers beginning in November 2005, after its then-owner Ms.
    Badiki 1 participated in required training classes, passed evalua-
    tions, and signed WIC vendor agreements. 2 These agreements set
    forth the responsibilities of Poly-Plex. They also warned that WIC
    vouchers could not be purchased or sold; they could only be re-
    deemed for WIC-eligible items. Besides, that, the signed agree-
    ments memorialized Poly-Plex’s responsibility to ensure that all
    its staff were properly trained and aware of the WIC program
    guidelines.
    In October 2011, a Georgia Department of Public Health in-
    vestigator, Heather Jewell, conducted a monitoring visit at Poly-
    Plex, which resulted in the issuance of a probation letter. During
    1 Appellants contend that the ownership of Poly-Plex changed from Ms. Badiki
    to Mr. Mediko sometime in 2009.
    2 Badiki signed agreements in 2005, 2007, and 2010. Mr. Mediko signed a WIC
    program acknowledgment agreement in 2010.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022   Page: 4 of 58
    4                     Opinion of the Court                20-14461
    the visit, Investigator Jewell informed Mr. Mediko, who was iden-
    tified as the owner, of various deficiencies.
    A couple months later, in December 2011, Investigator Jew-
    ell conducted a second visit to Poly-Plex and requested all WIC
    vouchers. Mr. Mediko spoke to Investigator Jewell and said that
    business was slow, so he had no WIC vouchers available. Accord-
    ing to Mr. Mediko, his Electronic Benefits Transfer (“EBT”) ma-
    chine had not been working for a week, and that explained the lack
    of vouchers. But this explanation made no sense to Investigator
    Jewell because WIC vouchers are not processed with EBT termi-
    nals. At the end of the December 2011 visit, Investigator Jewell
    again noted several deficiencies, including that Poly-Plex offered
    only limited qualifying food items, and other WIC-approved items
    were not available at the store.
    Several more months passed. Then, beginning in August
    2012, investigators conducted undercover operations at Poly-Plex
    to determine whether it was exchanging cash for WIC vouchers.
    The investigation revealed that on various occasions, someone
    from Poly-Plex exchanged cash for WIC vouchers. To conduct the
    investigation, the Department of Agriculture enlisted the under-
    cover cooperation of Amanda Brent, whom the Department had
    caught previously selling her WIC vouchers for cash. At trial, Ms.
    Brent testified about her participation in four undercover sales of
    WIC vouchers to Poly-Plex. As Ms. Brent narrated, the United
    States played surveillance videos of those sales.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 5 of 58
    20-14461               Opinion of the Court                       5
    Ms. Brent explained that when she first approached Mrs.
    Mediko inside Poly-Plex to sell WIC vouchers, Mrs. Mediko repeat-
    edly asked who told her that Poly-Plex would exchange vouchers
    for cash, so Ms. Brent identified a person to “familiarize” herself
    with Mrs. Mediko. During all but one of the undercover transac-
    tions, Ms. Brent gave her WIC vouchers to Mrs. Mediko inside
    Poly-Plex. Mrs. Mediko then went to the back office to collect cash
    from Mr. Mediko in exchange for the WIC vouchers. During her
    visits to Poly-Plex to sell vouchers, Ms. Brent said, Mr. Mediko was
    “always there.” This sequence changed only once in November
    2012, when Mrs. Mediko told Ms. Brent that she would let her
    know when Mr. Mediko returned, and she would give her the
    money then.
    Videos of the undercover transactions revealed Mrs. Mediko
    took precautions when she exchanged the vouchers for cash. For
    example, Mrs. Mediko walked outside the store to pay Ms. Brent
    on multiple occasions. And Ms. Brent explained that “[s]ometimes
    [Mrs. Mediko] would put [cash] inside the actual WIC folder.
    Sometimes she would discreetly pass it over to me inside the
    store.” The jury also heard a recorded telephone call between Mrs.
    Mediko and Ms. Brent. During that call, Mrs. Mediko asked Ms.
    Brent to “lie to [her] doctor” and tell the doctor that her baby was
    throwing up, so that the doctor would prescribe Peptamen, which
    had a “higher dollar amount on that voucher.” No evidence re-
    vealed that Ms. Badiki was present at Poly-Plex during any of the
    undercover transactions.
    USCA11 Case: 20-14461          Date Filed: 11/23/2022   Page: 6 of 58
    6                         Opinion of the Court              20-14461
    The undercover investigation culminated in federal agents’
    execution of a search warrant at Poly-Plex in June 2013. Among
    others, Investigator Jewell and Special Agent Fred McCree from
    the Office of Investigations at the United States Department of Ag-
    riculture were present for the search. Agent McCree found various
    documents, including evidence that Ms. Badiki wrote checks for
    Mr. Mediko and other Poly-Plex employees to facilitate WIC trans-
    actions. In one instance, Ms. Badiki logged a check in a ledger as
    “cash Fred for WIC, in the amount of $400.” Agent McCree also
    collected invoices and receipts for purchases of WIC items made
    by Poly-Plex. But the dollar amounts of those purchases did not
    match the amount of inventory necessary to correlate with the
    WIC voucher redemption amounts.
    During the execution of the search warrant, Mrs. Mediko
    agreed to speak with investigators. She denied multiple times that
    she bought WIC vouchers. Even after being shown one of the un-
    dercover videos depicting her transactions, Mrs. Mediko still de-
    nied that she had bought WIC vouchers for cash.
    II.      Fraudulent Invoices
    After the execution of the search warrant, Ms. Badiki and the
    Medikos requested to meet with the government to discuss the ev-
    idence against them. The government provided defense counsel
    with evidence demonstrating that Poly-Plex’s expenses relating to
    WIC-eligible products did not comport with its substantially higher
    WIC voucher-redemption amounts. In the government’s view,
    this indicated fraud.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022      Page: 7 of 58
    20-14461                Opinion of the Court                         7
    Following one of these meetings in February 2015, Mr. Med-
    iko’s attorney, Bruce Morris, provided additional documents to the
    government in a box which Agent McCree picked up from Mr.
    Morris’s office. Agent McCree later reviewed the documents and
    determined that a large quantity of invoices in the box—which re-
    flected more than $1 million in purported WIC-eligible expenses
    for Poly-Plex—appeared suspicious. So the government contacted
    multiple vendors listed on the invoices. These vendors confirmed
    that the invoices were fabricated and that they had not shipped any
    products to Poly-Plex. In April 2015, the government informed de-
    fense counsel that hundreds of invoices counsel had provided to
    Agent McCree had been fabricated.
    Fast-forward two-and-a half years. In September 2017, a fed-
    eral grand jury returned an indictment charging Ms. Badiki and the
    Medikos with conspiracy to commit wire fraud, in violation of 
    18 U.S.C. § 1349
    , along with substantive charges of wire fraud, in vio-
    lation of 
    18 U.S.C. §§ 1342
     and 2; theft of government funds, in vi-
    olation of 
    18 U.S.C. §§ 641
     and 2; and fraud involving public
    money, in violation of 
    42 U.S.C. § 1760
    (g) and 
    18 U.S.C. § 2
    . The
    indictment alleged that the defendants had engaged in a scheme to
    defraud the government by purchasing WIC vouchers from indi-
    viduals for cash and later redeeming those vouchers for a higher
    sum of money.
    Once a trial date was set, the parties discussed the implica-
    tion of the box of fraudulent invoices. As a result of that discussion,
    Mr. Morris expressed interest in entering into a stipulation with the
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 8 of 58
    8                      Opinion of the Court                 20-14461
    government about that evidence. Although the government circu-
    lated a proposed stipulation, the parties did not reach an agreement
    at that time.
    But during a pretrial conference held on November 13, 2019,
    the government informed the district court about the fraudulent
    invoices and the parties’ discussion of a stipulation. The govern-
    ment said that it planned to admit the box of invoices at trial
    through Agent McCree’s testimony, but it was attempting to reach
    a stipulation with the defendants so it could avoid the need for
    Agent McCree to testify that he received the documents from Mr.
    Morris. When the district court asked Mr. Morris for his response,
    he said, “I didn’t fabricate any documents . . . . They are not sug-
    gesting I did. Just for the record.” Mr. Morris continued, “I think
    it’s reasonable of the government to try and do it this way. . . . I’d
    rather they not include my name or any suggestion that it came
    from my client, because that is not factually accurate.” Mrs. Med-
    iko’s lawyer indicated his agreement with Mr. Morris, and counsel
    for Ms. Badiki stated that he needed more time to discuss and con-
    sider the stipulation.
    The following day, the court entered an order relating to
    trial matters. Among other things, the order set forth the following
    stipulation: “The Parties stipulate that a box of documents contain-
    ing ‘fabricated’ invoices was provided to the Government by a rep-
    resentative of Defendants.”
    On the morning of the first day of trial, December 2, 2019,
    the defendants filed a joint motion to exclude the box of invoices
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 9 of 58
    20-14461               Opinion of the Court                         9
    under Rule 11 of the Federal Rules of Criminal Procedure and
    Rules 403 and 410 of the Federal Rules of Evidence. After jury se-
    lection, the district court heard arguments on the motion to ex-
    clude.
    The government initially said that it thought the parties had
    reached an agreement on a stipulation—until the motion to ex-
    clude had been filed. Still, though, the government agreed that the
    parties had not yet entered a formal stipulation. It also explained
    that, without a stipulation, Agent McCree would testify that he had
    received the documents from Mr. Morris. So the government pro-
    posed the stipulation to eliminate the issue of having to put Mr.
    Morris on the stand.
    Mr. Mediko’s counsel, Mr. Morris, pointed out that if the
    district court granted the motion to exclude, that would eliminate
    any issue about the stipulation. But, he noted, if the court denied
    the motion, Mr. Morris would reaffirm his agreement to the stipu-
    lation. Still, he expressed concern that if a defendant took the stand
    and “testifie[d] to something that is not the same as my recollec-
    tion, then someone is going to need to put me on the witness stand.
    And that’s going to create a significant problem.”
    Counsel for Ms. Badiki argued that the box of documents
    should be excluded under both Rules 410 and 403. Nevertheless,
    he said he would agree to the stipulation if the court were to deny
    the motion to exclude. Meanwhile, one of Mrs. Mediko’s attorneys
    objected to entering into a stipulation.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 10 of 58
    10                      Opinion of the Court                 20-14461
    Having heard the parties’ positions, the district court ex-
    pressed concern that, without a stipulation, the jury would be con-
    fused about where the documents came from. And that might
    mean that Mr. Morris would have to testify, “which [the judge
    said,] ‘I’m not going to do.’” The court allowed the government
    to file a written response to the motion to exclude and took the
    matter under advisement.
    After reviewing the government’s response, the district
    court continued the discussion of the motion to exclude. The court
    clarified that it did not believe that Rule 410 protected the box of
    invoices, but it intended to exclude the evidence under Rule 403
    because of the “good possibility” that Mr. Morris would have to
    testify. The court reiterated its fear that, if the parties did not re-
    solve the stipulation, “we will get ourselves to a point where we
    have no choice but to put Mr. Morris on the stand, which we
    simply can’t do.” The court revisited where the parties stood about
    the stipulation. In response, they expressed that they had come to
    a resolution.
    Ultimately, the parties agreed on the language of a stipula-
    tion relating to the box of documents. It stated,
    The United States of America, by and
    through its undersigned attorneys, and
    defendants Pauline Badiki, Ferdinand
    Mediko, and Monica Mediko, by and
    through their undersigned attorneys,
    hereby stipulate that in March 2015, a
    USCA11 Case: 20-14461      Date Filed: 11/23/2022    Page: 11 of 58
    20-14461              Opinion of the Court                      11
    representative of the defendants pro-
    vided a number of invoices, which are
    collectively marked as Government’s
    Exhibit Number 850, to the United
    States Department of Justice and the
    U.S. Department of Agriculture. These
    invoices were represented to be busi-
    ness records maintained in the ordinary
    course of business at Poly-Plex Phar-
    macy. The jury may accept these facts
    as proven.
    Counsel for the parties signed the stipulation, but the individual
    defendants did not.
    Despite the agreement, Mrs. Mediko’s counsel said that his
    client had no knowledge of any false documents in the box. He
    thought it would be unfair for the government to argue that Mrs.
    Mediko had a consciousness of guilt based on the document pro-
    duction. So he asked the district court to instruct the government
    to refrain from arguing consciousness of guilt, threatening to oth-
    erwise call Mr. Morris as a witness.
    The court declined. It agreed with the government that the
    government could argue certain inferences and deductions that
    could be drawn from circumstantial evidence. Mrs. Mediko’s at-
    torney represented for the record that, given that the court was
    ruling against his motion, were he so permitted, he would have
    called Mr. Morris as a witness to ask him how he got the box of
    documents. Counsel further proffered that he would have asked
    USCA11 Case: 20-14461      Date Filed: 11/23/2022    Page: 12 of 58
    12                     Opinion of the Court               20-14461
    Mr. Morris, “Do you have any information at all that Ms. Mediko
    had any knowledge, involvement, consent in, any party to a crime,
    any conspiracy, anything to know what’s in those documents? And
    I believe the answer would be: No, I do not.” The district court
    again said that it would not allow Mr. Morris to testify and empha-
    sized that a stipulation had been entered.
    III.   Trial
    Besides Investigator Jewell and the undercover purchaser,
    Ms. Brent, a few WIC recipients also testified at trial. They admit-
    ted that they had sold WIC vouchers to Poly-Plex employees for
    cash. One such witness, Yvette Jackson, testified that she met all
    three appellants. And similarly to Ms. Brent, explained that when
    she first appeared at Poly-Plex to sell her vouchers, Mrs. Mediko
    vetted her by asking how she knew about the store. Ms. Jackson
    stated that she gave WIC vouchers to Mr. Mediko for cash “numer-
    ous times” and, while Ms. Badiki was not present during these ex-
    changes, Mr. Mediko would ask Ms. Badiki to bring cash that he
    would give to Ms. Jackson.
    Agent McCree testified about Poly-Plex’s bank records,
    which the government obtained by subpoena. These records
    showed that Ms. Badiki had signed hundreds of checks on behalf of
    Poly-Plex from 2009 to 2013, some of which were made out to cash
    with “WIC” written in the memo line. And surveillance photos
    and signed deposit slips established that Ms. Badiki deposited the
    fraudulent WIC vouchers charged in the indictment into one of
    Poly-Plex’s bank accounts. On a few occasions, the evidence
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 13 of 58
    20-14461                Opinion of the Court                        13
    showed, Ms. Badiki crossed out the redemption amount listed on
    the voucher, wrote a new dollar amount, and placed her initials on
    the voucher.
    Agent McCree also explained that during the undercover
    transactions involving Ms. Brent, he was across the street from
    Poly-Plex and Ms. Brent gave him the cash she received in ex-
    change for her WIC vouchers. And he noted that a deposit slip for
    one of the transactions had the initials “P.B.” (Ms. Badiki’s initials)
    on it. Much of Agent McCree’s testimony, though, centered on his
    analysis of Poly-Plex’s WIC redemptions and invoices. He com-
    pared Poly-Plex’s redemptions from 2009 to 2013 to much larger
    grocery-store chain locations within a few miles of Poly-Plex, like
    Publix, Kroger, and Walmart. In comparison, Agent McCree
    found that Poly-Plex’s redemptions ($6.5 million) were more than
    triple its closest competitor (less than $2.1 million).
    Agent McCree testified that he attempted to calculate Poly-
    Plex’s expenses by collecting records from its vendors for the rele-
    vant period. He said he had reviewed hundreds of pages of bank
    records and invoices and thousands of redemptions. But when
    Agent McCree compared Poly-Plex’s WIC redemption amounts
    with its expenses, he found the WIC redemption amounts ex-
    ceeded Poly-Plex’s expenses by approximately $5 million. Even
    when crediting-Poly-Plex with some non-WIC eligible item ex-
    penses and with a 100% profit markup for potential WIC-eligible
    items, Agent McCree’s analysis showed an unexplained gap of ap-
    proximately $4 million between the amount in WIC redemptions
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 14 of 58
    14                     Opinion of the Court                20-14461
    that Poly-Plex had claimed and the value of WIC-eligible goods
    that it had provided to customers.
    Finally, aside from the documents seized on the day the
    search warrant was executed, Agent McCree explained that he re-
    ceived an additional box of invoices on a later date. At this point,
    the government read the parties’ stipulation with respect to the box
    of invoices—indicating that each defendant stipulated that “in
    March 2015, a representative of the defendants provided a number
    of invoices.” Agent McCree estimated that the box contained sev-
    eral hundred invoices purporting to show purchases of WIC-
    eligible items, reflecting a total of approximately $1 million in in-
    fant-formula purchases. As Agent McCree explained, he had not
    seen these same invoices when he participated in the execution of
    the search warrant in 2013. Agent McCree explained that he sub-
    poenaed the vendors who allegedly provided baby formula to Poly-
    Plex, providing them with copies of the invoices. Representatives
    of the two vendors testified that the invoices were not authentic,
    and one vendor had never even had an account with Poly-Plex.
    For its part, the defense put on witnesses who worked as de-
    livery drivers for Poly-Plex. They testified that they never pur-
    chased WIC vouchers for cash but said instead that they delivered
    WIC items in exchange for vouchers. One such driver said that
    Poly-Plex paid her a ten-percent cash commission based on the
    vouchers that she filled. A former Poly-Plex driver, Jonathan
    Shinholster, admitted that on one occasion, while making deliver-
    ies for Poly-Plex, he bought a WIC voucher for cash. When Ms.
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    20-14461                Opinion of the Court                         15
    Badiki learned that he had done so, Mr. Shinholster recalled, she
    fired him. But Mr. Shinholster agreed that Poly-Plex later rehired
    him to deliver prescriptions.
    The defense also called former Poly-Plex employee Patricia
    Okoli. She testified that she was not aware of anyone who came
    into the store and sold WIC vouchers for cash. She also attempted
    to explain the existence of the fraudulent invoices. According to
    Ms. Okoli, a co-worker lost a box of paperwork, invoices, and re-
    ceipts. So, Ms. Okoli testified, she and the co-worker created re-
    placement invoices by researching where Poly-Plex bought its
    products and obtaining information on Google. They then printed
    the fraudulent invoices out on a printer they bought for this pur-
    pose. Ms. Okoli further said that she confessed to Mr. Mediko for
    the first time during trial that she had falsified the invoices. Accord-
    ing to Ms. Okoli, when Mr. Mediko learned about this, Mr. Mediko
    and Ms. Badiki were upset, and Mr. Mediko asked her to testify at
    trial. Ms. Okoli denied that anyone at Poly-Plex had asked her to
    create the invoices, and she said she did not know what happened
    to the box of documents after she created them.
    At the close of the evidence, all three defendants moved to
    dismiss the case against them under Rule 29. The district court de-
    nied the motions.
    Then the parties offered their closing arguments, during
    which the government referenced the box of falsified invoices. It
    argued that, after the government executed the search warrant,
    “the defendants provided a box filled with fabricated invoices in a
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 16 of 58
    16                      Opinion of the Court              20-14461
    desperate effort” to conceal their fraud. Similarly, the government
    noted, “when the defendants knew they were caught, they pro-
    vided invoices that were completely fabricated.”
    Later, when discussing the evidence supporting Ms. Badiki’s
    guilt, the government highlighted what it deemed to be the “some-
    what remarkable testimony” from Ms. Okoli and noted that the in-
    voices suspiciously corresponded to the years that were under in-
    vestigation. The government emphasized that no dispute existed
    that “a representative of the defendants provided that box.” Next,
    when discussing evidence supporting Mr. Mediko’s guilt, the gov-
    ernment argued that Mr. Mediko “knew he had been caught, and
    he knew that the truth itself could not explain that gap. That’s not
    an act of an innocent person unaware of the purchase of vouchers
    at Poly-Plex.” Finally, when summing up the evidence, the gov-
    ernment stated that “[t]he defendants each attempted to hide the
    truth, both in terms of lying to investigators and then you heard
    the acts of delivering the fabricated invoices to the government.”
    At the end of the government’s closing argument, Mr. Med-
    iko’s counsel moved for a mistrial based on the comments about
    the box of fabricated invoices. The district court denied the mo-
    tion, explaining that it did not take the government’s argument to
    be “singling out a [particular] defendant.” Each defendant then ad-
    dressed the box of invoices in closing argument, each denying that
    he or she had anything to do with the creation of the documents.
    The jury found Ms. Badiki and the Medikos guilty of each
    count.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 17 of 58
    20-14461               Opinion of the Court                        17
    IV.    Ms. Badiki’s Claims
    Ms. Badiki raises three issues on appeal. One challenges the
    sufficiency of the evidence against her. The remaining two take
    issue with the district court’s application of sentencing enhance-
    ments.
    A.     Sufficiency of the Evidence
    First, Ms. Badiki claims no direct evidence demonstrated her
    involvement in purchasing WIC vouchers or that she knew that
    the Medikos were doing so. Mostly, Ms. Badiki contends she gave
    up control and ownership of Poly-Plex to Mr. Mediko at around
    the same time the purported conspiracy began. She notes that she
    was rarely at the pharmacy and was not present when the govern-
    ment conducted site inspections and undercover transactions, or
    when it executed the search warrant. And, Ms. Badiki continues,
    no evidence showed that she interacted with the WIC recipients
    who sold their vouchers.
    To convict a defendant of wire fraud, the government must
    present proof beyond a reasonable doubt that “the defendant (1)
    participated in a scheme or artifice to defraud; (2) with the intent
    to defraud; and (3) used, or caused the use of, interstate wire trans-
    missions for the purpose of executing the scheme or artifice to de-
    fraud.” United States v. Machado, 
    886 F.3d 1070
    , 1082–83 (11th
    Cir. 2018) (citation and internal quotation marks omitted). A jury
    may infer intent to defraud from the defendant’s conduct and cir-
    cumstantial evidence. 
    Id. at 1283
    .
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 18 of 58
    18                     Opinion of the Court                20-14461
    To convict a defendant of conspiracy, the government must
    prove beyond a reasonable doubt “(1) an agreement among two or
    more persons to achieve an unlawful objective,” (here, theft of
    federal funds); “(2) knowing and voluntary participation in the
    agreement; and (3) an overt act by a conspirator in furtherance of
    the agreement.” United States v. Hasson, 
    333 F.3d 1264
    , 1270 (11th
    Cir. 2003); see also United States v. Feldman, 
    931 F.3d 1245
    , 1257
    (11th Cir. 2019).
    We review de novo the sufficiency of the evidence to sup-
    port a conviction and the denial of a Rule 29 motion for judgment
    of acquittal. United States v. Gamory, 
    635 F.3d 480
    , 497 (11th Cir.
    2011). In so doing, we view all evidence “in the light most favora-
    ble to the government and draw[] all reasonable inferences and
    credibility choices in favor of the jury’s verdict.” United States v.
    Grzybowicz, 
    747 F.3d 1296
    , 1304 (11th Cir. 2014) (citation and in-
    ternal quotation marks omitted). We will disturb a jury’s verdict
    only if “no reasonable juror could have concluded beyond a rea-
    sonable doubt that the defendant was guilty.” United States v.
    Townsend, 
    630 F.3d 1003
    , 1009 (11th Cir. 2011). Reasonable infer-
    ences, drawn from circumstantial evidence, are sufficient to sup-
    port a guilty verdict. United States v. Martin, 
    803 F.3d 581
    , 587–88
    (11th Cir. 2015).
    Here, sufficient evidence exists to support Ms. Badiki’s con-
    victions. First, the evidence showed that Ms. Badiki signed Poly-
    Plex’s WIC vendor applications, training records, and WIC pro-
    gram agreements in 2005, 2007, and 2010. And in the various
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 19 of 58
    20-14461               Opinion of the Court                      19
    applications and agreements, Ms. Badiki identified herself as presi-
    dent or manager of Poly-Plex. Even in a September 2010 reauthor-
    ization form, Ms. Badiki listed her title as “manager.” By signing
    the forms, Ms. Badiki agreed that she would be held “fully account-
    able” for ensuring that every Poly-Plex employee followed WIC
    program rules. Based on inspections and communications, Ms.
    Badiki would have been aware that, in May 2007, the Department
    of Agriculture identified Poly-Plex as a “high risk” vendor.
    The evidence also supported the conclusion that Ms. Badiki
    had control over the business’s finances during the relevant time
    frame (2009–2013). During his testimony, Agent McCree spoke of
    his review of Poly-Plex’s bank records, including canceled checks
    from 2009 to 2013 reflecting that Ms. Badiki signed checks on behalf
    of the business. Indeed, Bank of America records showed that Ms.
    Badiki had signed hundreds of checks, many of which were paid to
    Poly-Plex vendors, some to delivery drivers, and some made out to
    cash with “WIC” written in the memo line. Likewise, documents
    revealed that Ms. Badiki had signature authority for Poly-Plex’s JP
    Morgan Chase and Wells Fargo accounts. These records refuted
    Ms. Badiki’s defense that she had no control over Poly-Plex once
    she turned the business over to Mr. Mediko.
    We do not suggest that Ms. Badiki’s management of the
    business and control of its finances would alone connect her to the
    WIC-fraud conspiracy. But importantly, surveillance photos and
    signed deposit slips established that Ms. Badiki deposited the spe-
    cific fraudulent WIC vouchers charged in the indictment into Poly-
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 20 of 58
    20                     Opinion of the Court                20-14461
    Plex’s bank account at Bank of America between January 25 and
    February 5, 2013. Other evidence also supported the conclusion
    that Ms. Badiki knew the true nature of the vouchers. For example,
    on a few occasions, Ms. Badiki crossed out the redemption amount
    listed on a voucher, wrote a new dollar amount, and placed her
    initials on the voucher. And although none of the witnesses said
    that Ms. Badiki gave them money for WIC vouchers, Yvette Jack-
    son implicated Ms. Badiki in the scheme. Ms. Jackson stated that
    on some occasions, Mr. Mediko asked Ms. Badiki to bring him cash
    that he then gave Ms. Jackson for the sale of her vouchers. This
    testimony was substantiated by other evidence that showed that,
    in at least one instance, Ms. Badiki logged in a check ledger “cash
    Fred for WIC, in the amount of $400.”
    But perhaps the most incriminating evidence against Ms.
    Badiki was Agent McCree’s testimony comparing Poly-Plex’s WIC
    redemption amounts with its expenses. Even with a substantial
    profit markup for potential WIC-eligible items and even giving
    Poly-Plex credit for costs associated with obtaining non-WIC-
    eligible items, Agent McCree found an unexplained gap of approx-
    imately $4 million between the amount of WIC redemptions Poly-
    Plex claimed and the value of WIC-eligible goods that it allegedly
    provided to customers.
    This disparity is especially significant, given that Ms. Badiki
    controlled the business finances, wrote checks to place orders with
    vendors, and deposited the WIC vouchers in Poly-Plex’s bank ac-
    counts. A reasonable jury could conclude that Ms. Badiki was
    USCA11 Case: 20-14461        Date Filed: 11/23/2022      Page: 21 of 58
    20-14461                Opinion of the Court                         21
    aware of the amount Poly-Plex spent on WIC-eligible goods and
    the amounts Poly-Plex received from the federal government once
    the WIC vouchers were redeemed. See Machado, 886 F.3d at
    1083–84. And the disparity was staggering—in the millions. Plus,
    Poly-Plex was a small mom-and-pop store. So the $4 million dis-
    parity weighs even more heavily against Ms. Badiki.
    Taking the evidence in the light most favorable to the gov-
    ernment, we conclude that the evidence was sufficient to support
    the jury’s convictions of Ms. Badiki. See United States v. Capers,
    
    708 F.3d 1286
    , 1297 (11th Cir. 2013) (In reviewing a sufficiency
    claim, this Court should not overturn a jury verdict “if any reason-
    able construction of the evidence would have allowed the jury to
    find the defendant guilty beyond a reasonable doubt.”) (citation
    and internal quotation marks omitted).
    We have explained that a defendant may be found guilty of
    conspiracy if “the evidence demonstrates [s]he knew the ‘essential
    objective’ of the conspiracy, even if [s]he did not know all its details
    or played only a minor role in the overall scheme.” United States
    v. Guerra, 
    293 F.3d 1279
    , 1285 (11th Cir. 2002). And here, the to-
    tality of the evidence directly implicated Ms. Badiki as an essential
    participant in the scheme. Accordingly, her conviction for WIC-
    fraud conspiracy must stand.
    The evidence also directly implicated Ms. Badiki in the sub-
    stantive fraud counts since it showed her involvement in a scheme
    to defraud, her intent to defraud, and her use of interstate wire
    transmissions for the purpose of executing the scheme. See
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 22 of 58
    22                     Opinion of the Court               20-14461
    Machado, 886 F.3d at 1082-83. Importantly, Ms. Badiki deposited
    the particular fraudulent WIC vouchers charged in the indictment.
    The fact that she, in some instances, crossed out redemption
    amounts and wrote in new amounts supports her knowledge of the
    fraudulent scheme. And on at least one occasion, Ms. Badiki wrote
    in a cash ledger, “cash Fred for WIC, in the amount of $400.”
    Each of the substantive counts—the counts for wire fraud,
    theft of government funds, and WIC fraud—incorporated by refer-
    ence the conspiracy allegations and included charges for aiding in
    abetting under 
    18 U.S.C. § 2
    . Section 2 provides that “[w]hoever
    commits an offense against the United States or aids, abets, coun-
    sels, commands, induces or procures its commission, is punishable
    as a principal.” 
    18 U.S.C. § 2
    (a) (emphasis added); see also Rose-
    mond v. United States, 
    572 U.S. 65
    , 70 (2014). This is because indi-
    viduals who provide “knowing aid to persons committing fed-
    eral crimes, with the intent to facilitate the crime, are themselves
    committing a crime.” 
    Id. at 71
     (citation and internal quotation
    marks omitted). To establish a defendant’s guilt under a theory of
    aiding and abetting, the government must prove the following: “(1)
    the substantive offense was committed by someone; (2) the defend-
    ant committed an act which contributed to and furthered the of-
    fense; and (3) the defendant intended to aid in its commis-
    sion.” United States v. Camacho, 
    233 F.3d 1308
    , 1317 (11th Cir.
    2000).
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 23 of 58
    20-14461               Opinion of the Court                      23
    Here, a reasonable jury could conclude that the government
    established each of these elements with respect to Ms. Badiki. The
    evidence showed that both Mr. and Mrs. Mediko engaged in wire
    fraud and theft of government funds when they purchased WIC
    vouchers for cash, and Ms. Badiki participated in the offenses when
    she deposited the WIC vouchers in the bank for payment by the
    federal government. The money obtained by the defendants was
    administered by the United States Department of Agriculture in
    the form of WIC voucher payments. And the other evidence we
    have already discussed also supports the jury’s verdict that Ms.
    Badiki intended to aid in the substantive crimes. For these reasons,
    Ms. Badiki’s convictions for wire fraud, theft of government funds,
    and WIC fraud must stand as well.
    B.    Sentencing
    The district court sentenced Ms. Badiki to 54 months’ im-
    prisonment on each of the counts in the indictment, with the sen-
    tences to run concurrently. The sentence reflected a downward
    variance from the guidelines range, which the district court arrived
    at by applying, among other things, enhancements for role and ob-
    struction of justice. Ms. Badiki challenges the application of these
    enhancements on appeal.
    1. Hearing Testimony
    We begin by setting forth the evidence presented during the
    sentencing hearing as that evidence relates to the challenged en-
    hancements. Aside from testifying about the loss calculations,
    USCA11 Case: 20-14461         Date Filed: 11/23/2022      Page: 24 of 58
    24                      Opinion of the Court                    20-14461
    Agent McCree discussed two interviews of former Poly-Plex em-
    ployee Tracie Robinson—one that occurred in 2016 and the other
    in 2019.
    Agent McCree explained that Poly-Plex had employed Ms.
    Robinson as a driver between 2011 and 2012. He said that Ms. Rob-
    inson had admitted to buying WIC vouchers for cash at Poly-Plex’s
    direction. During the 2016 interview, Ms. Robinson told Agent
    McCree that Mrs. Mediko had instructed her (and other drivers) to
    deliver envelopes of cash to various women and to return to Poly-
    Plex with those women’s WIC vouchers. According to Ms. Robin-
    son, Agent McCree continued, Ms. Badiki and Mr. Mediko paid
    drivers a commission of ten percent every time they exchanged a
    WIC voucher for cash. Three years later, though, during her 2019
    interview, Ms. Robinson testified that Ms. Badiki owned Poly-Plex
    and was rarely physically present, though Ms. Badiki did pay cash
    for commissions “as it pertains to milk, eggs, cheese, and infant for-
    mula.” 3
    In addressing the discrepancy between Ms. Robinson’s 2016
    and 2019 interviews, Agent McCree explained that, during the 2016
    interview, Robinson was in “good shape” and “appeared to be
    healthy” when he interviewed her. In contrast, he “didn’t even rec-
    ognize her when [he] saw her [again] in 2019.” Agent McCree
    thought that, at that time, Ms. Robinson “did not look healthy at
    3
    Transcripts of Robinson’s interviews are located at docket entries 135-5
    and 137-3.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 25 of 58
    20-14461                Opinion of the Court                        25
    all” because she was suffering from medical conditions. He noted
    that Ms. Robinson had been in a coma for two to three months
    after the 2016 interview. As a result, Ms. Robinson told Agent
    McCree, her medical issues greatly affected her memory. While
    Ms. Robinson did not testify that anything she said during her 2016
    interview was incorrect, Agent McCree explained that Robinson
    appeared to have trouble remembering things she had mentioned
    during the 2019 interview. Based on Ms. Robinson’s testimony, the
    government sought a role enhancement against Ms. Badiki.
    Agent McCree also addressed the box of fraudulent invoices
    during the sentencing hearing. He said that he received the box
    from Mr. Mediko’s attorney, Mr. Morris, but that he did not know
    who prepared them, who directed the preparation of the invoices,
    or when they were created.
    The government sought an enhancement for obstruction of
    justice based on the box of falsified invoices, noting that the defend-
    ants had stipulated that a representative of all of theirs had submit-
    ted the box. Although Ms. Badiki conceded that the invoices were
    false, she argued that the stipulation did not mean she knew false
    invoices were prepared or given to the government.
    The district court applied both enhancements against Ms.
    Badiki. Concerning the obstruction enhancement, the court con-
    sidered whether there was “proof of by whom or how the [box of
    fabricated] invoices were created” and whether all three of the de-
    fendants were involved in providing the invoices to the govern-
    ment. The court explained that it had “many issues” with Ms.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022      Page: 26 of 58
    26                      Opinion of the Court                  20-14461
    Okoli’s testimony about the origin of the invoices. It also expressed
    its belief that “there’s no way that the defendants would have al-
    lowed these documents to be submitted if they weren’t thinking
    that they would help them in some way.” Ultimately, the court
    concluded that the defendants initiated the submission of the box
    to try to help themselves. Given that the submission was made on
    behalf of Poly-Plex, and with respect to all three defendants joining
    in, the court applied the obstruction enhancement to Ms. Badiki.
    As for Ms. Badiki’s objection to the role enhancement, the
    district court overruled that, too, relying on our unpublished deci-
    sion in United States v. Stinson, 659 F. App’x 534 (11th Cir. 2016).
    The court also denied Ms. Badiki’s objections about the loss calcu-
    lation and the two-level enhancement for abuse of a position of
    trust. We review the challenged enhancements below.
    2. Role Enhancement
    Ms. Badiki argues that the district court erred in applying a
    role enhancement under U.S.S.G. § 3B1.1(c). In her view, although
    some evidence existed that she had control over the assets of Poly-
    Plex and some of its activities, the government failed to show that
    she controlled one or more other participants in the offense. We
    disagree.
    When a defendant challenges the application of an enhance-
    ment under the Sentencing Guidelines, we normally review the
    district court’s factual findings for clear error and its interpretation
    and application of the Sentencing Guidelines to the facts de novo.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022      Page: 27 of 58
    20-14461                Opinion of the Court                         27
    United States v. Gordillo, 
    920 F.3d 1292
    , 1297 (11th Cir. 2019);
    United States v. Alred, 
    144 F.3d 1405
    , 1421 (11th Cir. 1998) (lower
    court’s determination of a defendant’s role in an offense is a factual
    finding subject to clearly erroneous review, but application of a
    guideline to the defendant’s specific factual situation is a question
    of law reviewed de novo).
    Clear-error review is deferential, so “we will not disturb a
    district court’s findings unless we are left with a definite and firm
    conviction that a mistake has been committed.” Gordillo, 920 F.3d
    at 297 (quoting United States v. Cruickshank, 
    837 F.3d 1182
    , 1192
    (11th Cir. 2016)). “The district court’s choice between two permis-
    sible views of the evidence as to the defendant’s role in the offense
    will rarely constitute clear error so long as the basis of the trial
    court’s decision is supported by the record and does not involve a
    misapplication of a rule of law.” Cruickshank, 837 F.3d at 1192
    (cleaned up).
    A district court applies a two-level enhancement when a de-
    fendant is an organizer, leader, manager, or supervisor in criminal
    activity that involved at least one other participant. United States
    v. Phillips, 
    287 F.3d 1053
    , 1058 (11th Cir. 2002). Thus, the two-level
    enhancement in Ms. Badiki’s base offense level under U.S.S.G.
    § 3B1.1(c) is proper only if she was the organizer or leader of at least
    one other participant in the crime, meaning that she asserted con-
    trol or influence over at least that one participant. United States v.
    Glover, 
    179 F.3d 1300
    , 1302-03 (11th Cir. 1999). Ms. Badiki need
    not be the sole leader of the conspiracy for the enhancement to
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 28 of 58
    28                     Opinion of the Court                20-14461
    apply. United States v. Barrington, 
    648 F.3d 1178
    , 1200 (11th Cir.
    2011).
    Comment four of U.S.S.G. § 3B1.1, sets forth seven explana-
    tory factors that illustrate whether a defendant is an “organizer” or
    a “leader,” and we consider these factors in determining whether
    to apply the adjustment for aggravating role in the offense. United
    States v. Martinez, 
    584 F.3d 1022
    , 1026 (11th Cir. 2009) (quoting
    United States v. Gupta, 
    463 F.3d 1182
    , 1198 (11th Cir. 2006) (quot-
    ing U.S.S.G. § 3B1.1 cmt. n.4). No requirement exists that “all of
    the considerations have to be present in any one case.” Martinez,
    
    584 F.3d at 1026
     (citation and internal quotation marks omitted).
    Instead, the factors are “merely considerations for the sentencing
    judge.” 
    Id.
     (citation and internal quotation marks omitted).
    In conducting this analysis, we start by agreeing with Ms.
    Badiki that her management of Poly-Plex’s banking and business
    finances was not enough, by itself, to support a role enhancement.
    See 
    id.
     (recognizing that “management of assets, standing alone, is
    insufficient to support an enhancement under Section 3B1.1.”) In-
    stead, “there must be evidence that the defendant exerted some
    control, influence or decision-making authority over another par-
    ticipant in the criminal activity.” 
    Id.
     This is so because the en-
    hancement is meant to account for differences in co-conspirators’
    relative responsibility. 
    Id.
    The evidence presented during the sentencing hearing indi-
    cated that Ms. Badiki paid a 10% commission to drivers who ex-
    changed the WIC vouchers for cash. That is sufficient for the
    USCA11 Case: 20-14461         Date Filed: 11/23/2022       Page: 29 of 58
    20-14461                 Opinion of the Court                           29
    application of the enhancement. Incentivizing others to participate
    in a conspiracy by paying commissions implies the sort of hierar-
    chical relationship necessary to uphold a role enhancement. See
    
    id.
    We recognize that Ms. Robinson’s 2016 interview—in
    which she revealed that Ms. Badiki paid employees a commission
    for trading cash for the WIC vouchers—represents the only piece
    of evidence supporting Ms. Badiki’s exercise of control over Poly-
    Plex employees. But a sentencing court is generally free to con-
    sider whatever information it finds helpful in determining what
    sentence to impose, including hearsay. United States v. Zlatogur,
    
    271 F.3d 1025
    , 1031 (11th Cir. 2001) (per curiam) (upholding en-
    hancements based on hearsay). Indeed, a sentencing court “may
    consider any evidence, regardless of its admissibility at trial, in de-
    termining whether factors exist that would enhance a defendant’s
    sentence, provided that (1) the evidence had sufficient indicia of re-
    liability, (2) the court makes explicit findings of fact as to credibility,
    and (3) the defendant has an opportunity to rebut the evidence.”
    United States v. Hernandez, 
    906 F.3d 1367
    , 1369 (11th Cir. 2018)
    (citing United States v. Ghertler, 
    605 F.3d 1256
    , 1269 (11th Cir.
    2010)).
    And a district court’s failure to make explicit findings about
    the reliability of a witness’s hearsay testimony “does not neces-
    sarily require reversal or remand where the reliability of the state-
    ments is apparent from the record.” United States v. Docampo,
    
    573 F.3d 1091
    , 1098 (11th Cir. 2009) (quoting United States v.
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 30 of 58
    30                     Opinion of the Court                20-14461
    Gordon, 
    231 F.3d 750
    , 761 (11th Cir. 2000)). We evaluate reliability
    of hearsay evidence on a case-by-case basis. United States v. Lee,
    
    68 F.3d 1267
    , 1275 (11th Cir. 1995). To prevail on a sentencing
    challenge based on unreliable evidence, a defendant must show
    “(1) that the challenged evidence is materially false or unreliable
    and (2) that it actually served as the basis for the sentence.”
    Ghertler, 
    605 F.3d at 1269
    .
    Here, the district court did not clearly err when it credited
    Ms. Robinson’s 2016 testimony that Ms. Badiki paid 10% commis-
    sions to drivers who purchased WIC vouchers for cash. Ms. Badiki
    has not shown that the testimony was materially false or unrelia-
    ble. And though the court did not make explicit findings about Ms.
    Robinson’s credibility during the sentencing hearing, the district
    court’s conclusion that Ms. Robinson’s testimony in this respect
    was reliable is apparent from the record. True, Robinson’s 2016
    statement was more specific with respect to Ms. Badiki’s role in
    paying commissions than her testimony during the 2019 interview.
    But there are no contradictions between the two interviews.
    The primary difference between the two interviews is that,
    during the 2019 interview, Robinson did not affirmatively state that
    she received commissions from Ms. Badiki when she traded WIC
    vouchers for cash. But she also did not affirmatively contradict her
    prior statement. While an omission like this might cause pause un-
    der certain circumstances, here, the government offered a reason-
    able explanation: Ms. Robinson had been in a coma for two to
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 31 of 58
    20-14461               Opinion of the Court                        31
    three months and had memory problems as a result. Indeed, at the
    outset of her 2019 interview, Ms. Robinson told Agent McCree that
    she remembered little about working at Poly-Plex at all. Because
    the 2016 and 2019 statements don’t directly contradict each other—
    one was just more detailed and complete than the other—and be-
    cause Ms. Badiki does not refute the reasons for Ms. Robinson’s
    lack of memory during the 2019 interview, Ms. Badiki failed to
    show that Ms. Robinson’s statements were materially unreliable.
    Ms. Robinson’s 2016 interview supports the district court’s
    conclusion that Ms. Badiki exercised control over other employees
    by paying commissions for WIC-vouchers that were exchanged for
    cash. We therefore conclude that the application of the role en-
    hancement was not erroneous.
    3. Obstruction-of-Justice Enhancement
    The district court based its application of the obstruction-of-
    justice enhancement under U.S.S.G. § 3C1.1 on the stipulation
    about the production of fraudulent invoices to the government.
    Ms. Badiki claims the stipulation established only that a “repre-
    sentative of the defendants” gave the invoices to the government
    and did not establish that she had any part in creating the invoices,
    that she knew they were false, or that she knew the box would be
    provided to the government. Without this type of knowledge, Ms.
    Badiki claims, she cannot be found to have acted willfully and with
    the purpose to obstruct justice, which § 3C1.1 requires. We find
    no error.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022      Page: 32 of 58
    32                      Opinion of the Court                   20-14461
    The guideline at issue here—U.S.S.G. § 3C1.1—provides
    that a criminal defendant’s offense level shall be enhanced by two
    levels if “(1)the defendant willfully obstructed or impeded, or at-
    tempted to obstruct or impede, the administration of justice with
    respect to the investigation, prosecution, or sentencing of the in-
    stant offense of conviction, and (2) the obstructive conduct related
    to (A) the defendant’s offense of conviction and any relevant con-
    duct; or (B) a closely related offense.” United States v. Guevara, 
    894 F.3d 1301
    , 1311 (11th Cir. 2018) (quoting U.S.S.G. § 3C1.1). To al-
    low for meaningful appellate review, district courts typically must
    make specific findings of fact when they enhance sentences for ob-
    struction of justice. Id. But if the record supports the enhancement
    by “clearly reflect[ing] the basis for [it,]” the district court need not
    make individualized findings regarding obstruction of justice. Id.
    Application of the obstruction enhancement requires satis-
    faction of a clear mens rea requirement, meaning that a defendant
    must willfully obstruct or attempt to obstruct justice. Id. “‘Will-
    fully’ means the defendant consciously acted with the purpose of
    obstructing justice.” United States v. Perkins, 
    787 F.3d 1329
    , 1341
    (11th Cir. 2015) (citing United States v. Massey, 
    443 F.3d 814
    , 819
    (11th Cir. 2006)). The conduct supporting this enhancement,
    though, “can vary widely in nature, degree of planning, and seri-
    ousness.” United States v. Watts, 
    896 F.3d 1245
    , 1254 (11th Cir.
    2018) (citation and internal quotation marks omitted).
    The Application Notes for § 3C1.1 list examples of covered
    conduct, including “producing or attempting to produce a false,
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 33 of 58
    20-14461               Opinion of the Court                        33
    altered, or counterfeit document or record during an official inves-
    tigation or judicial proceeding.” U.S.S.G. § 3C1.1 cmt. n.4(C). And
    we have held that transmitting false documents to the government
    during an official investigation may constitute obstruction of jus-
    tice. See United States v. Callahan, 
    981 F.2d 491
    , 496–97 (11th Cir.
    1993).
    Also noteworthy, Application Note 4(C), in contrast with
    other types of obstructive conduct listed in the Guidelines, does not
    contain any qualifier requiring the production of a fraudulent doc-
    ument to materially mislead authorities. And the plain text of that
    application note shows that the enhancement is appropriate upon
    the production of the false document to the government.
    Here, the district court did not clearly err when it deter-
    mined that Ms. Badiki obstructed justice based on the tendering of
    the fraudulent invoices to the government. Ms. Badiki conceded
    the falsity of the documents during the sentencing hearing, and
    vendors’ representatives testified at trial that the invoices were in
    fact fraudulent. Ms. Badiki did not need to create the documents
    for them to be used against her for the obstruction enhancement.
    Rather, the mere production of the fraudulent documents was
    enough, as long as Ms. Badiki was aware that the documents were
    fraudulent. See Callahan, 
    981 F.2d at
    496-97 and Cordero-Castro,
    688 F. App’x at 636.
    Before announcing its ruling, the district court expressed its
    belief that, based on the evidentiary record, “there’s no way that
    the defendants didn’t know what was in there.” The court also
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 34 of 58
    34                     Opinion of the Court                 20-14461
    concluded that “there’s no way that the defendants would have al-
    lowed these documents to be submitted if they weren’t thinking
    that they would help them in some way.” Indeed, the court found
    that the defendants initiated the submission of the box to try to help
    themselves and likely did not consider that someone would look at
    the invoices closely to determine that they were fraudulent. Given
    that the submission was made on behalf of Poly-Plex, and all three
    defendants joined it, the court determined the enhancement was
    applicable.
    Although no direct evidence showed that Ms. Badiki knew
    that the invoices were fraudulent, based on the evidence of record,
    the court could reasonably infer that she knew about the falsity of
    the invoices. Ample evidence showed that Ms. Badiki was involved
    in the management of Poly-Plex and was responsible for depositing
    WIC vouchers at the bank. And other evidence we have already
    discussed supports a finding that she was engaged in a conspiracy
    to defraud the government of money by falsely claiming to have
    redeemed WIC vouchers for eligible goods. So we cannot con-
    clude that the district court clearly erred in concluding that the de-
    fendants (including Ms. Badiki)—who knew they were in trouble
    and who were the only ones in a position to benefit from the fraud-
    ulent production—caused the presentation of fraudulent invoices
    to the government.
    To be sure, the district court could have chosen to believe
    Ms. Okoli’s testimony that none of the defendants had anything to
    do with the creation or production of the invoices. But the district
    USCA11 Case: 20-14461             Date Filed: 11/23/2022         Page: 35 of 58
    20-14461                     Opinion of the Court                               35
    court was not required to accept Ms. Okoli’s testimony. And here,
    the district court explained that it had “many issues” with Ms.
    Okoli’s testimony as to the origin of the invoices. Given the nature
    of that testimony and the fact that the invoices mysteriously cov-
    ered only the years under investigation, we cannot say that the dis-
    trict court clearly erred in rejecting Ms. Okoli’s testimony. On the
    contrary, the district court’s finding that Okoli was not credible was
    reasonable under the circumstances. See, e.g., United States v. Ro-
    driguez, 
    398 F.3d 1291
    , 1296–97 (11th Cir. 2005) (finding no clear
    error when the district court exercised its discretion when deciding
    whose testimony it believed); Castaneda-Pozo, 
    877 F.3d 1249
    , 1251
    (11th Cir. 2017) (per curiam) (same).
    V.      Mr. Mediko’s Claims
    Mr. Mediko raises three issues on appeal. First, he claims
    his Sixth Amendment right to counsel was violated because his at-
    torney, Mr. Morris, had a conflict of interest that adversely affected
    his performance at trial. Second, Mr. Mediko claims that, because
    of this alleged conflict, the district court was required to conduct a
    Garcia 4 hearing but failed to do so. Third, Mr. Mediko contends
    the district court abused its discretion when it denied his motion
    for mistrial based on the government’s allegedly improper
    4 The holding in United States v. Garcia, 
    517 F.2d 272
     (5th Cir. 1975), requires
    a district court to conduct an inquiry when a potential conflict of interest exists
    between an attorney and her client. If a conflict exists, a “Garcia hearing” en-
    sures that the defendant “knowingly, intelligently, and voluntarily” waives his
    right to conflict-free counsel. Id.at 278.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 36 of 58
    36                     Opinion of the Court                 20-14461
    statements about the fabricated invoices during closing arguments.
    We address each argument in turn.
    A.    Sixth Amendment Claim
    First, Mr. Mediko claims that Mr. Morris had a conflict of
    interest and that the conflict adversely affected his performance at
    trial. In Mr. Mediko’s view, Mr. Morris could have provided excul-
    patory evidence that Mr. Mediko did not give the box of fabricated
    invoices to Mr. Morris. But because Mr. Morris represented Mr.
    Mediko at trial, Mr. Mediko complains, the district court ruled that
    Mr. Morris could not testify on Mr. Mediko’s behalf. Mr. Mediko
    further contends that Mr. Morris’s conflict impaired his ability to
    represent Mr. Mediko and caused Mr. Morris to agree to stipulate
    to the introduction of the box of invoices. According to Mr. Med-
    iko, that violated his Sixth Amendment right to counsel. We are
    not persuaded.
    The Sixth Amendment of the Constitution guarantees crim-
    inal defendants the right to effective assistance of counsel for their
    defense. U.S. Const. amend. VI; McCann v. Richardson, 
    397 U.S. 759
    , 771 (1970). Effective assistance of counsel includes counsel
    who is “unimpaired by conflicting loyalties.” Duncan v. Alabama,
    
    881 F.2d 1013
    , 1016 (11th Cir. 1989). The right to effective assis-
    tance of counsel “encompasses the right to representation free
    from actual conflict with defense counsel.” Buenoano v. Sin-
    gletary, 
    74 F.3d 1078
    , 1086 (11th Cir. 1996) (per curiam). Questions
    about conflicts of interest are mixed questions of law and fact that
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 37 of 58
    20-14461               Opinion of the Court                        37
    we review de novo. Porter v. Singletary, 
    14 F.3d 554
    , 561 (11th Cir.
    1994).
    To establish a Sixth Amendment claim arising from an al-
    leged conflict of interest when the defendant did not object at
    trial—as is the case here—a defendant “must demonstrate that an
    actual conflict of interest adversely affected his lawyer's perfor-
    mance.” Cuyler v. Sullivan, 
    446 U.S. 335
    , 348 (1980). That means
    that to rule for Mr. Mediko, we must be convinced that the conflict
    is real, not merely hypothetical or speculative. Buenoano, 
    74 F.3d at 1086
    . The mere possibility of a conflict of interest does not rise
    to the level of a Sixth Amendment violation. 
    Id.
     (citing Smith v.
    White, 
    815 F.2d 1401
    , 1404 (11th Cir.), cert. denied, 
    484 U.S. 863
    (1987)); see also Burden v. Zant, 
    24 F.3d 1298
    , 1305 (11th Cir. 1994)
    (a defendant must prove that trial counsel had an actual conflict of
    interest in which he “actively represented conflicting interests;”
    “the mere possibility of a conflict ‘is insufficient to impugn a crim-
    inal conviction’”) (quoting Cuyler, 
    446 U.S. at 350
    ).
    A defendant establishes an actual conflict when he shows
    that counsel had conflicting interests and that he, in fact, made a
    choice between two or more courses of action, “such as eliciting
    (or failing to elicit) evidence that favors an interest in competition
    with that of the defendant." Ferrell v. Hall, 
    640 F.3d 1199
    , 1244
    (11th Cir. 2011) (citations and internal quotation marks omitted).
    If the attorney did not make this type of choice, the conflict is
    merely hypothetical. 
    Id.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 38 of 58
    38                      Opinion of the Court                 20-14461
    Mr. Mediko argues that an actual conflict of interest ex-
    isted between him and Mr. Morris for two reasons: in Mr. Med-
    iko’s view, (1) Mr. Morris was a necessary witness; and (2) Mr. Mor-
    ris’s interests were inconsistent with Mr. Mediko’s. In support of
    these arguments, Mr. Mediko relies on various rules of professional
    conduct governing lawyers in Georgia, including one such rule that
    precludes a lawyer from acting as an advocate at a trial in which he
    is likely to be a necessary witness (unless certain conditions not ap-
    plicable here are met). See Ga. Rules of Prof’l Conduct R. 3.7(a)
    and Delevan v. State, 
    811 S.E.2d 71
    , 74 (Ga. Ct. App. 2018). A law-
    yer is a necessary witness when no other evidence is available to
    prove those facts. 
    Id.
     at 75 n.13.
    Mr. Mediko also points to Rule 1.7(a) of Georgia’s Rules of
    Professional Conduct, which provides that a lawyer “shall not rep-
    resent or continue to represent a client if there is a significant risk
    that the lawyer’s own interests . . . will materially and adversely
    affect the representation of the client.” Ga. Rules of Prof’l Conduct
    R. 1.7(a). The only exception to this rule is if the client provides
    written consent. See Ga. Rules of Prof’l Conduct R. 1.7(b). The
    commentary to the rule explains that “[l]oyalty to a client is im-
    paired when a lawyer cannot consider, recommend or carry out an
    appropriate course of action for the client because of the lawyer’s
    other competing responsibilities or interests.” Ga. Rules of Prof’l
    Conduct R. 1.7 cmt. 2.
    We consider Mr. Mediko’s argument that Mr. Morris was
    a necessary witness and that his interests were inconsistent with
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 39 of 58
    20-14461               Opinion of the Court                        39
    those of Mr. Mediko under a Sixth Amendment conflict-of-interest
    analysis. As to Mr. Mediko’s contention that Mr. Morris improp-
    erly agreed to enter into the stipulation, we conclude that that issue
    is more properly framed as an ineffective-assistance-of-counsel
    claim. We explain below why, on direct appeal, neither warrants
    reversal of the district court’s order denying mistrial.
    1. Did an actual conflict of interest exist?
    According to Mr. Mediko, Mr. Morris was a necessary wit-
    ness because his testimony was relevant to disputed, material ques-
    tions of fact, including “who provided the box of false documents
    and whether Mr. Mediko was involved in that process.” Because
    the lower court prevented Mr. Morris from testifying, Mr. Mediko
    says he was deprived of his right to question a witness about the
    custody of the box or its source. He also asserts that no other evi-
    dence was available to prove those facts, resulting in an actual con-
    flict of interest between himself and his counsel.
    We disagree. Mr. Morris was not a necessary witness at
    trial. Contrary to Mr. Mediko’s argument, the relevant question
    was not who provided the box of fraudulent invoices to Morris, but
    rather, whether Mr. Mediko orchestrated the falsification of the in-
    voices, knew about their existence, or knew that they would be
    provided to the government. Even if Mr. Mediko did not physi-
    cally hand the invoices to his attorney, that fact alone would not
    absolve him of the taint associated with the falsified invoices.
    USCA11 Case: 20-14461      Date Filed: 11/23/2022    Page: 40 of 58
    40                     Opinion of the Court               20-14461
    And on that critical question of whether Mr. Mediko knew
    the invoices were false before Mr. Morris turned them over to the
    government, Mr. Morris could provide no evidence. Rather, Mr.
    Morris could deny only “any suggestion that [the box of invoices]
    came from [Mr. Mediko], because that [was] not factually correct.”
    But who provided the documents to Mr. Morris was not the issue
    at trial.
    Not only that, but even if Mr. Mediko could show that Mr.
    Morris’s testimony was material to his defense, he failed to show
    that he could not obtain this evidence through another source. In
    fact and to the contrary, when Ms. Okoli testified, Mr. Mediko and
    the other defendants presented evidence that Mr. Morris could not
    even have provided—that is, that none of the defendants knew the
    invoices were fabricated. Ms. Okoli testified in depth that she fab-
    ricated the invoices with a co-worker and never told anyone about
    the falsified documents until she spoke with Mr. Mediko on a
    weekend during trial. And under Ms. Okoli’s version of the facts,
    because Mr. Morris had produced the box of documents to the gov-
    ernment years earlier, regardless of who gave Mr. Morris the in-
    voices, Mr. Mediko could not have known about them. On cross-
    examination, Mr. Morris could have asked Ms. Okoli any number
    of things, including (1) to whom she gave the box of documents
    and (2) whether Mr. Mediko was aware that the fraudulent invoices
    had been made. He did not. Regardless, Mr. Okoli testified that
    neither Ms. Badiki nor anyone at Poly-Plex asked her to create the
    invoices.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 41 of 58
    20-14461               Opinion of the Court                       41
    To be sure, the jury apparently did not believe Ms. Okoli’s
    testimony. But that does not bear on whether it was available to
    Mr. Mediko. It clearly was.
    Under these circumstances, Mr. Morris was not a necessary
    witness, so no actual conflict of interest could have existed. See
    United States v. Roberson, 
    897 F.2d 1092
    , 1098 (11th Cir. 1990 (no
    error in excluding testimony by attorney where other witnesses
    were available).
    As for Mr. Mediko’s second argument—that Morris’s inter-
    ests impaired his ability to effectively represent his client—Mr.
    Mediko alleges Mr. Morris was concerned with minimizing his role
    in providing the box of fraudulent invoices to the government. As
    Mr. Mediko tells it, aside from attempting to avoid the appearance
    of impropriety, Mr. Morris allegedly stipulated to the use of the in-
    voices at trial to prevent a circumstance where he would be re-
    quired to testify.
    We easily reject this argument. No evidence exists that Mr.
    Morris harbored conflicting interests based on a desire to minimize
    his role with respect to the invoices. Nobody suggested that he was
    involved in the fabrication of the invoices or that he knew the doc-
    uments were fraudulent when he transmitted them to the govern-
    ment. This case differs greatly from those Mr. Mediko relies on in
    support of his position. See e.g., United States v. Greig, 
    967 F.2d 1018
    , 1022-24 (5th Cir. 1992) (actual conflict found where attorney
    was accused of obstructing justice by pressuring a government wit-
    ness not to testify against the defendant); United States v. McLain,
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 42 of 58
    42                     Opinion of the Court               20-14461
    
    823 F.2d 1457
    , 1463-64 (11th Cir. 1987) (finding actual conflict of
    interest where defense counsel was under investigation by same
    office that was prosecuting the defendant)). Instead, this case is
    more like United States v. Montana, 
    199 F.3d 947
     (7th Cir. 1999),
    where no conflict existed when defense counsel merely acted as a
    courier of a note containing a bribe and had not read the note.
    Here, too, nothing suggests that Mr. Morris was involved in the
    preparation of the falsified invoices or knew they were fraudulent
    when he produced them to the government.
    Because no actual conflict of interest arose between Mr.
    Mediko and his attorney, we need not consider whether Mr.
    Mediko was adversely affected by an actual conflict.
    2. Ineffective Assistance of Counsel
    Mr. Mediko contends Mr. Morris had no good reason to en-
    ter into the stipulation after the district court announced that it
    would exclude evidence of the fraudulent invoices under Rule 403.
    And he says that Mr. Morris’s actions adversely affected him. We
    conclude this argument is more properly addressed as an ineffec-
    tive-assistance-of-counsel claim. While we can address such claims
    on direct appeal when they are based on a conflict of interest,
    United States v. Rodriguez, 
    982 F.2d 474
     (11th Cir. 1993) (per cu-
    riam), we will do so only if the record is sufficiently developed.
    United States v. Bender, 
    290 F.3d 1279
    , 1284 (11th Cir. 2002). Here,
    it is not.
    USCA11 Case: 20-14461           Date Filed: 11/23/2022        Page: 43 of 58
    20-14461                  Opinion of the Court                              43
    This claim is better resolved on a 
    28 U.S.C. § 2255
     claim. On
    this record, we cannot ascertain why Mr. Morris stipulated to the
    entry of the invoices into evidence after the district court indicated
    its inclination to keep the documents out. We do not express any
    opinion as to the viability (or lack thereof) of such a claim. We
    simply do not have sufficient record evidence to decide the issue.
    B.     Garcia Hearing
    Related to his first conflict-of-interest argument, Mr. Mediko
    contends the district court erred by failing to conduct a hearing, as
    required by Garcia, 
    517 F.2d at 277-78
    , 5 to determine whether a
    conflict of interest existed between himself and Mr. Morris. We re-
    view for abuse of discretion the district court’s failure to hold a Gar-
    cia hearing on whether to disqualify Mr. Morris. United States v.
    Garcia, 
    447 F.3d 1327
    , 1337 (11th Cir. 2006). Under the circum-
    stances, we find no abuse of discretion.
    As we have mentioned, when it is apparent that a potential
    conflict of interest exists, the district court must conduct an inquiry
    to ensure the defendant is “knowingly, intelligently, and voluntar-
    ily” waiving his constitutional right to conflict-free counsel. Garcia,
    
    517 F.2d at 278
    ; United States v. Valois, 
    915 F.3d 717
    , 727 (11th Cir.
    2019). But the district court has no “duty to inquire into the possi-
    bility of a conflict” when neither defense counsel nor the record
    5 This Court adopted as binding precedent all Fifth Circuit decisions issued
    prior to October 1, 1981. Bonner v. City of Prichard, 
    661 F.2d 1206
    , 1209 (11th
    Cir. 1981 (en banc).
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 44 of 58
    44                     Opinion of the Court                 20-14461
    alerts the court to that possibility. United States v. Medel, 
    592 F.2d 1305
    , 1312-13 (5th Cir. 1979); Valois, 915 F.3d at 727-28. In other
    words, the district court need not initiate an inquiry unless it knows
    or reasonably should know that a particular conflict might exist.
    Cuyler, 
    446 U.S. at 347
    . And a district court’s failure to conduct a
    Garcia hearing will result in reversal only if an actual conflict of
    interest exists. United States v. Mers, 
    701 F.2d 1321
    , 1326 (11th Cir.
    1983) (holding a failure to hold a Garcia holding is harmless error if
    no actual conflict exists).
    The record reflects, and both parties acknowledge, that the
    district court did not conduct a hearing regarding the conflict-of-
    interest issue. Although a Garcia hearing may have been the safe
    route, for two reasons the district court’s failure to conduct a Gar-
    cia hearing does not warrant reversal.
    First, Mr. Morris represented Mr. Mediko for at least four
    years before trial and never alerted the district court as to any po-
    tential conflict of interest in his representation of Mr. Mediko.
    While Mr. Mediko suggested that the district court’s awareness of
    Mr. Morris’s role in transmitting the box of documents should have
    triggered the court’s duty to inquire into the potential conflict, at-
    torneys routinely transmit documents to the government at the
    pretrial stage. Nothing in the record alerted the district court to
    any potential conflict in Mr. Morris’s representation such that it
    was required to inquire into whether a conflict existed and whether
    Mr. Mediko waived his right to conflict-free counsel.
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 45 of 58
    20-14461                Opinion of the Court                        45
    Indeed, the district court did not even become directly in-
    volved in the issue over the fraudulent invoices until the morning
    of trial,6 when the defendants filed their motion to exclude the ev-
    idence. By that point, the parties had been attempting to work out
    a stipulation, and no one suggested that a possible conflict of inter-
    est existed between Mr. Mediko and his attorney. Although the
    record reflects that the district court was concerned that Mr. Morris
    might have to take the stand about the transmittal of the box of
    documents, the parties ultimately expressed that they had entered
    into a stipulation over the documents. Under these facts, the dis-
    trict court did not abuse its discretion when it failed to hold a Gar-
    cia hearing.
    Second, even if the court’s failure to conduct a Garcia hear-
    ing constituted an abuse of discretion, reversal is not warranted un-
    less an actual conflict of interest existed. See Mers, 
    701 F.2d at
    1326
    6 Although the government informed the court about the box of
    invoices during a pretrial conference held on November 13, 2019,
    at that point, the parties conveyed that they were attempting to
    agree on a stipulation regarding the box. This discussion prompted
    the court to issue an order the following day, in part, setting forth
    that the parties had stipulated that the box contained fabricated in-
    voices and that a representative of defendants provided it to the
    government. The district court did not become directly involved
    in the issue until the morning of trial on December 2, 2019, when
    the defendants filed their motion to exclude the documents.
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 46 of 58
    46                     Opinion of the Court                20-14461
    (the absence of a Garcia hearing “will not mandate reversal absent
    an actual conflict of interest”). But as we have already discussed,
    Mr. Mediko failed to show that an actual conflict of interest existed
    between himself and his attorney. Consequently, reversal is not
    warranted in any event.
    C.    Remarks Made During Closing Arguments
    For his final argument, Mr. Mediko asserts the district court
    abused its discretion when it denied his motion for a mistrial based
    on comments the government made during closing arguments.
    Mr. Mediko takes issue with the government’s implication of him
    in the production of fraudulent invoices. He also says the state-
    ments the government made during closing impugned his credibil-
    ity.
    We review the denial of a motion for mistrial for an abuse
    of discretion. Valois, 915 F.3d at 723 n.2; United States v. Wright,
    
    392 F.3d 1269
    , 1274 (11th Cir. 2004). To establish prosecutorial
    misconduct in the context of closing arguments, a defendant must
    show two things: “(1) the remarks must be improper, and (2) the
    remarks must prejudicially affect the substantial rights of the de-
    fendant.” United States v. Reeves, 
    742 F.3d 487
    , 505 (11th Cir.
    2014) (citations and internal quotation marks omitted). Substantial
    rights are prejudicially affected if a reasonable probability exists
    that, but for the remarks, the outcome of the trial would have been
    different. United States v. Eckhardt, 
    466 F.3d 938
    , 947 (11th Cir.
    2006); see also United States v. Mathurin, 
    868 F.3d 921
    , 930 (11th
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 47 of 58
    20-14461               Opinion of the Court                        47
    Cir. 2017). When the record contains sufficient independent evi-
    dence of guilt, any error is harmless. Eckhart, 466 F.3d at 947.
    We generally consider four factors in deciding whether pros-
    ecutorial misconduct has occurred: “(1) the degree to which the
    challenged remarks have a tendency to mislead the jury and to prej-
    udice the accused; (2) whether they are isolated or extensive; (3)
    whether they were deliberately or accidentally placed before the
    jury; and (4) the strength of the competent proof to establish the
    guilt of the accused.” United States v. Feliciano, 
    761 F.3d 1202
    , 1211
    (11th Cir. 2014) (citation and internal quotation marks omitted);
    See also Reeves, 742 F.3d at 505. We have explained that a prose-
    cutor’s comments during closing arguments must be “viewed in
    the context of the trial as a whole.” Id.
    Here, the challenged comments were neither false nor mis-
    leading, especially when considering the context of the trial and
    closing arguments as a whole. Mr. Mediko contends that the gov-
    ernment singled him out for blame when it argued that “his repre-
    sentative provide[d] this box of fraudulent and forged vouchers.”
    While the government used the phrase “his representative” in one
    instance, elsewhere, it said that a “representative of the defendants”
    provided the documents to the government. The government also
    made the same arguments with respect to each of the defendants;
    it did not single out Mr. Mediko.
    At the outset of the closing arguments, the government ar-
    gued that after the search warrant was conducted, “the defendants
    provided a box filled with fabricated invoices in a desperate effort”
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 48 of 58
    48                     Opinion of the Court                 20-14461
    to conceal their fraud. Similarly, it noted, “when the defendants
    knew they were caught, they provided invoices that were com-
    pletely fabricated.” Later, when discussing evidence supporting
    Ms. Badiki’s guilt, the government pointed to, among other thigs,
    the box of fabricated invoices. It noted the lack of dispute that “a
    representative of the defendants provided that box.” And when
    summing up the evidence of Mr. Mediko’s guilt, the government
    stated that “[t]he defendants each attempted to hide the truth, both
    in terms of lying to investigators and then you heard the acts of
    delivering the fabricated invoices to the government.” Taking all
    the statements together, the district court correctly concluded that
    the government’s closing argument did not “single out” a particu-
    lar defendant with respect to the falsified invoices.
    And even assuming that the remark that “[Mr. Mediko’s]
    representative provide[d] th[e] box of fraudulent and forged vouch-
    ers” was improper, the statement was isolated. See Feliciano, 761
    F.3d at 1211. The trial was not replete with improper comments
    that would warrant reversal. See Eckhardt, 466 F.3d at 947 (“Even
    if these comments were inappropriate, reversal is only warranted
    if the entire trial is so replete with errors that [the defendant] was
    denied a fair trial”).
    Plus, Mr. Mediko’s counsel vigorously refuted any inference
    that Mr. Mediko had produced the fraudulent invoices. During Mr.
    Mediko’s closing, Mr. Morris suggested that “[t]here is no evidence
    at all that [Mr. Mediko] had anything to do with fabricating docu-
    ments.” Instead, he pointed to the testimony of Ms. Okoli, who
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 49 of 58
    20-14461                Opinion of the Court                        49
    said she had not initially told Mr. Mediko about the documents.
    He also argued that “there is no evidence whatsoever that when
    that box was turned over, that any of these defendants, or espe-
    cially [Mr.] Mediko, knew that what was in that box was false.”
    And Mr. Morris further reiterated that Mr. Mediko “didn’t have an-
    ything to do with it, and there’s no evidence that he did.”
    Finally, the strength of the evidence was great, and it was
    sufficient to establish Mr. Mediko’s guilt notwithstanding the re-
    mark about the invoices. See Eckhardt, 466 F.3d at 947 (noting that
    the particular evidence would have led to a conviction regardless
    of the prosecutor's statements). First, individuals testified that they
    sold their WIC vouchers to Mr. Mediko in exchange for cash nu-
    merous times. Second, Ms. Brent testified to undercover sales of
    WIC vouchers at Poly-Plex involving Mr. Mediko. According to
    Ms. Brent, Mrs. Mediko would go to the back office to collect cash
    from Mr. Mediko in exchange for the WIC vouchers. These un-
    dercover purchases were caught on video surveillance.
    Third, Investigator Jewell testified about two on-site inspec-
    tions she conducted at Poly-Plex in October and December of 2011,
    during which she discussed Poly-Plex’s deficient WIC inventory
    with Mr. Mediko. During the second inspection, Mr. Mediko
    claimed that Poly-Plex had not accepted any WIC vouchers “in a
    while” due to problems with its EBT point-of-sale terminal. But
    this explanation made no sense because WIC vouchers are not pro-
    cessed with EBT terminals, and the lack of an EBT machine would
    not have any effect on a vendor’s ability to accept WIC vouchers.
    USCA11 Case: 20-14461         Date Filed: 11/23/2022    Page: 50 of 58
    50                        Opinion of the Court               20-14461
    Mr. Mediko also said that no WIC vouchers were on site, but re-
    demption data showed that Poly-Plex redeemed more than 3,000
    WIC vouchers that same month.
    For all these reasons, the district court did not abuse its dis-
    cretion when it denied Mr. Mediko’s motion for mistrial based on
    the government’s comments during closing arguments.
    VI.      Mrs. Mediko’s Claim
    Finally, Mrs. Mediko raises a single claim. She asserts that
    the district court violated her constitutional right to present a de-
    fense when it prevented her from calling Mr. Morris as a witness.
    Mrs. Mediko claims if she had been permitted to call him, Mr. Mor-
    ris would have corrected the misleading impression that she was
    involved in the presentation of the false invoices to the govern-
    ment. Because of the district court’s ruling, Mrs. Mediko contends,
    she was wrongly prevented from presenting “critical and exculpa-
    tory evidence at trial.” Mrs. Mediko asserts her sole defense at trial
    was that she did not know that she could not purchase WIC vouch-
    ers for money, so Mr. Morris’s testimony was critical to support
    her contention that she lacked a criminal plan to conspire with her
    co-defendants.
    We review a district court’s evidentiary rulings for abuse of
    discretion. United States v. Knowles, 
    889 F.3d 1251
     (11th Cir.
    2018); United States v. Lankford, 
    955 F.2d 1545
    , 1548 (11th Cir.
    1992). A trial court has “broad discretion under Federal Rule of
    Evidence 611(b) to determine the permissible scope of cross-
    USCA11 Case: 20-14461       Date Filed: 11/23/2022     Page: 51 of 58
    20-14461               Opinion of the Court                        51
    examination.” 
    Id.
     This discretion, however, is subject to the re-
    quirements of the Sixth Amendment, which guarantees every ac-
    cused the right to confront witnesses against her. Id.; U.S. Const.
    amend. VI. The Sixth Amendment also guarantees a criminal de-
    fendant the right to have “compulsory process for obtaining wit-
    nesses in [her] favor.” U.S. Const. amend. VI ; United States v.
    Hurn, 
    368 F.3d 1359
    , 1362 (11th Cir. 2004). This right is not abso-
    lute, as the accused does not have an “unfettered right” to offer
    testimony that is “incompetent, privileged, or otherwise inadmis-
    sible under the standard rules of evidence.” Taylor v. Illinois, 
    484 U.S. 400
    , 410 (1988).
    To determine whether a criminal defendant’s claim under
    the Sixth Amendment right to call witnesses in her defense was vi-
    olated, we conduct a two-step analysis. First, we assess whether
    the defendant’s constitutional right was actually violated. If it was,
    then we evaluate whether the error was harmless beyond a reason-
    able doubt. Hurn, 
    368 F.3d at 1362-63
    . Typically, four circum-
    stances exist under which a criminal defendant must be allowed to
    introduce evidence: (1) “a defendant must generally be permitted
    to introduce evidence directly pertaining to any of the actual ele-
    ments of the charged offense or an affirmative defense”; (2) “a de-
    fendant must generally be permitted to introduce evidence pertain-
    ing to collateral matters that, through a reasonable chain of infer-
    ences, could make the existence of one or more of the elements of
    the charged offense or an affirmative defense more or less certain”;
    (3) “a defendant generally has the right to introduce evidence that
    USCA11 Case: 20-14461        Date Filed: 11/23/2022     Page: 52 of 58
    52                      Opinion of the Court                 20-14461
    is not itself tied to any of the elements of a crime or affirmative
    defense, but that could have a substantial impact on the credibility
    of an important government witness”; and (4) “a defendant must
    generally be permitted to introduce evidence that, while not di-
    rectly or indirectly relevant to any of the elements of the charged
    events, nevertheless tends to place the story presented by the pros-
    ecution in a significantly different light, such that a reasonable jury
    might receive it differently.” 
    Id. at 1363
    .
    Mrs. Mediko contends that the second and fourth circum-
    stances apply here because the government either cast her in an
    “inaccurate, unfavorable light” or “ma[de] entirely legitimate, nor-
    mal, or accepted acts appear unusual or suspicious.” She says she
    had the right to introduce evidence to dispel this “unjustified taint”
    even if the evidence did not directly or indirectly bear on any ele-
    ment of an offense. 
    Id.
     at 1366–1367. We are not persuaded.
    We first note that it was incumbent upon Mrs. Mediko’s
    counsel to make an adequate proffer of the substance of the sup-
    posed excluded evidence to show that it was wrongly excluded.
    See United States v. Sheffield, 
    992 F.2d 1164
    , 1169 (11th Cir. 1993).
    We have explained that we require this step “to alert the [trial]
    court and opposing counsel to the thrust of the excluded evidence,
    enabling them to take appropriate action, and to construct a record
    appropriate for appellate review.” 
    Id.
     (citation and internal quota-
    tion marks omitted). Here, Mrs. Mediko’s counsel proffered the
    following:
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 53 of 58
    20-14461               Opinion of the Court                       53
    I would ask [Mr. Morris] how he got in
    possession of the [box of falsified] docu-
    ments. And I will ask him: do you have
    any information at all that [Mrs. Med-
    iko] had any knowledge, involvement,
    consent in, any party to a crime, any
    conspiracy, anything to know what’s in
    those [fraudulent] documents? And I
    believe the answer would be: no, I do
    not.
    Docket Entry 188 at 728.
    The problem for Mrs. Mediko is that Mr. Morris’s proffered
    testimony would not have elucidated much regarding her intent.
    Based on the proffer, Mr. Morris’s expected testimony was that he
    did not have any information about Mrs. Mediko’s involvement in
    the falsified invoices. This differs substantially from Mrs. Mediko’s
    argument on appeal—that Mr. Morris would have provided testi-
    mony that Mrs. Mediko did not participate in the production of the
    invoices nor was she aware that they had been produced. Exclu-
    sion of testimony that Mr. Morris did not know whether Mrs. Med-
    iko was involved would not satisfy either of the two circumstances
    in Hurn on which Mrs. Mediko relies.
    Mrs. Mediko’s reliance on our decisions in United States v.
    Sheffield, 
    992 F.2d 1164
     (11th Cir. 1993), and United States v. Todd,
    
    108 F.3d 1329
     (11th Cir. 1997), is also misplaced. The facts of this
    case are distinguishable from Sheffield since there, the excluded ev-
    idence would have supported the defendant’s good-faith state of
    USCA11 Case: 20-14461      Date Filed: 11/23/2022    Page: 54 of 58
    54                    Opinion of the Court                20-14461
    mind. Here, Mr. Morris’s testimony does not tell us anything
    about Mrs. Mediko’s state of mind. This fact also distinguishes our
    case from Todd, where the excluded evidence was relevant to the
    defendant’s state of mind.
    We further reject Mrs. Mediko’s contention that Mr. Morris
    was the only witness who could have presented testimony with re-
    spect to her knowledge and intent about the falsified invoices. As
    we have explained, Ms. Okoli took the stand and testified that she
    fabricated the invoices. Mrs. Mediko’s attorney could have, but did
    not, question Ms. Okoli about the origin of the documents. If he
    had, and if such evidence existed, he could have elicited the facts
    that (1) Mrs. Mediko did not direct Ms. Okoli to create the false
    invoices, (2) Mrs. Mediko was not aware that the fraudulent in-
    voices had been made, (3) Mrs. Mediko did not take the fraudulent
    invoices from Ms. Okoli, (4) Mrs. Mediko did not produce the doc-
    uments to the government, and (5) Mrs. Mediko was not aware
    that the box of documents had been produced.
    In short, Mrs. Mediko’s constitutional rights were not actu-
    ally violated when the district court precluded her from question-
    ing Mr. Morris.
    But even assuming the exclusion of Mr. Morris’s testimony
    violated Mrs. Mediko’s constitutional rights, we would not reverse
    her conviction because any such error by the trial court was harm-
    less.
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 55 of 58
    20-14461               Opinion of the Court                      55
    The Sixth Amendment guarantees criminal defendants the
    right to confront witnesses, but the harmless-error doctrine applies
    to violations of the Confrontation Clause. United States v. Ed-
    wards, 
    211 F.3d 1355
    , 1359 (11th Cir. 2000). The relevant inquiry
    is “whether, assuming that the damaging potential of the cross-ex-
    amination were fully realized, a reviewing court might nonetheless
    say that the error was harmless beyond a reasonable doubt.” Del-
    aware v. Van Arsdall, 
    475 U.S. 673
    , 684 (1986). In assessing the im-
    pact of the exclusion of testimony here, we must decide “whether
    we have a reasonable doubt that the result in [Mrs. Mediko’s] case
    would have been the same had [s]he been able to call [Mr. Morris]
    to the stand as a witness on [her] behalf.” United States v. Hernan-
    dez, 
    141 F.3d 1042
    , 1050 (11th Cir. 1998).
    Any constitutional error may be considered harmless if
    “there was ample evidence to convict absent the error.” United
    States v. Nunez, 
    1 F.4th 976
    , 992 (11th Cir. 2021). Because the evi-
    dence of Mrs. Mediko’s guilt was overwhelming—even without
    reference to the box of fraudulent documents (or even if Mr. Morris
    had been allowed to testify)—any error by the district court was
    harmless.
    First, the jury saw Mrs. Mediko on video purchasing WIC
    vouchers from undercover informant Amanda Brent. Ms. Brent
    conducted four sales at Poly-Plex. During all but one of the trans-
    actions, Ms. Brent gave her WIC vouchers to Mrs. Mediko inside
    Poly-Plex. Mrs. Mediko then collected cash from Mr. Mediko in
    exchange for the WIC vouchers. The fourth time, Mrs. Mediko
    USCA11 Case: 20-14461      Date Filed: 11/23/2022     Page: 56 of 58
    56                     Opinion of the Court               20-14461
    told Ms. Brent she would let her know when Mr. Mediko returned
    and would provide the money at that time. The videos also
    showed Mrs. Mediko taking precautions when she exchanged cash
    for the vouchers, including walking outside the store to pay Ms.
    Brent on multiple occasions. Ms. Brent said that “[s]ometimes
    [Mrs. Mediko] would put [cash] inside the actual WIC folder.
    Sometimes she would discreetly pass it over to me inside the
    store.” Mrs. Mediko’s apparent efforts to secrete the cash ex-
    changes for the vouchers supported the notion that she knew that
    the transactions were illegal.
    Yvette Jackson similarly testified that she sold WIC vouchers
    to Mrs. Mediko at Poly-Plex. And both Ms. Jackson and Ms. Brent
    stated that before making their first sale, Mrs. Mediko vetted them
    to make sure that it was “safe” to go forward with the transaction.
    The video played for the jury showed how Mrs. Mediko asked Ms.
    Brent repeatedly who told her to come to Poly-Plex to exchange
    WIC vouchers for cash. Again, Mrs. Mediko’s vetting of the cus-
    tomers supported the conclusion that she knew that purchasing
    WIC vouchers for cash was illegal.
    Plus, the jury heard a recorded telephone call between Mrs.
    Mediko and Ms. Brent during which Mrs. Mediko asked her to “lie
    to [her] doctor” that her baby was throwing up so that the doctor
    would prescribe Peptamen, which had a “higher dollar amount on
    that voucher.” The call supports an inference that Mrs. Mediko
    knew that false redemptions for certain items would gain Poly-Plex
    USCA11 Case: 20-14461       Date Filed: 11/23/2022    Page: 57 of 58
    20-14461               Opinion of the Court                       57
    more money than would false redemptions for other items. It also
    shows Mrs. Mediko’s fraudulent intent.
    Finally, Agent McCree’s testimony also supports an infer-
    ence that Mrs. Mediko knew the transactions were illegal. He tes-
    tified that while the team conducted the search warrant, Mrs. Med-
    iko agreed to an interview. And during that interview, Mrs. Med-
    iko denied “at least three times” that she bought WIC vouchers.
    Even after being shown one of the undercover videos, she still de-
    nied buying the WIC vouchers. That Mrs. Mediko lied about the
    WIC-voucher purchases provides yet more support that she knew
    the conduct was illegal.
    In sum, even without any reference to the box of false in-
    voices, the other evidence strongly points to Mrs. Mediko’s guilt
    and her fraudulent intent to buy the WIC vouchers. While Mrs.
    Mediko claims that Mr. Morris’s testimony was essential, she does
    not adequately articulate how it could negate all the evidence set
    forth above. Any testimony by Mr. Morris that Mrs. Mediko did
    not provide the box to him would not have altered the outcome
    here since that evidence would not have gone to Mrs. Mediko’s in-
    tent. And more than enough evidence supported the jury’s conclu-
    sion that she knew about the illegality of her conduct. We there-
    fore conclude that any constitutional error in refusing to allow Mrs.
    Mediko to cross-examine Mr. Morris was harmless since “there was
    ample evidence to convict absent the error.” Nunez, 1 F.4th at 992.
    USCA11 Case: 20-14461    Date Filed: 11/23/2022   Page: 58 of 58
    58                   Opinion of the Court             20-14461
    VII.   Conclusion
    For the foregoing reasons, we affirm the convictions and
    sentences of Ms. Badiki, Mr. Mediko, and Mrs. Mediko.
    AFFIRMED.