United States v. Kevin Mack , 841 F.3d 514 ( 2016 )


Menu:
  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued September 12, 2016          Decided November 15, 2016
    No. 15-3051
    UNITED STATES OF AMERICA,
    APPELLEE
    v.
    KEVIN EUGENE MACK,
    APPELLANT
    Appeal from the United States District Court
    for the District of Columbia
    (No. 1:13-cr-00150-1)
    John A. Briley, Jr. argued the cause and filed the briefs
    for appellant.
    Karen P. Seifert, Assistant U.S. Attorney, argued the
    cause for appellee. With her on the brief was Elizabeth
    Trosman, Assistant U.S. Attorney. Lauren R. Bates, Assistant
    U.S. Attorney, entered an appearance.
    Before: BROWN, Circuit Judge, and EDWARDS and
    GINSBURG, Senior Circuit Judges.
    Opinion for the Court filed by Senior Circuit Judge
    EDWARDS.
    2
    EDWARDS, Senior Circuit Judge: On May 23, 2013,
    appellant Kevin Mack was charged by indictment with two
    counts of distribution of a mixture or substance containing
    phencyclidine (PCP), in violation of 21 U.S.C. § 841(a)(1),
    (b)(1)(B)(iv), (b)(1)(C), for twice selling PCP to an
    undercover police officer. On July 21, 2014, appellant pled
    guilty to one count of the indictment. On July 28, 2015, the
    District Court imposed a 77-month term of incarceration and
    36 months of supervised release. In his appeal to this court,
    appellant contends that the District Court erred by failing to
    consider his arguments for a time-served sentence. In
    particular, appellant claims that the trial judge ignored his
    “sentencing manipulation” argument – i.e., that the
    undercover officer arranged the second PCP sale solely to
    increase his sentence. Appellant also argues that the District
    Court erred in calculating the quantity of PCP attributable to
    him.
    At the time of sentencing, a district court judge is
    required to state in open court the reasons for choosing a
    particular sentence. 18 U.S.C. § 3553(c) (2012). This
    requirement has been construed to mean that the trial judge
    must address all “nonfrivolous reasons” for an alternative
    sentence asserted by a defendant and provide a “reasoned
    basis” in open court for any sentencing decision. United
    States v. Locke, 
    664 F.3d 353
    , 357 (D.C. Cir. 2011) (quoting
    Rita v. United States, 
    551 U.S. 338
    , 356–57 (2007)).
    The trial judge in this case expressly rejected appellant’s
    claim that he had been “induced” by police officers to engage
    in unlawful conduct in an order denying appellant’s motion to
    dismiss the indictment. But the trial judge did not explicitly
    address the issue of “sentencing manipulation” when he
    rendered his sentencing decision. However, after explaining
    the reasons for his sentencing decision, the trial judge asked
    3
    appellant’s counsel on two occasions whether there was any
    reason why the court should not impose the sentence on the
    terms indicated. Counsel said “no.” In other words, even
    when afforded the opportunity to object, defense counsel
    never complained that the trial judge had failed to address
    appellant’s sentencing manipulation argument. In these
    circumstances, we hold that appellant did not preserve his
    claim that the District Court failed to adequately address his
    sentencing manipulation argument. We therefore review this
    claim for plain error. On the record before us, we find no
    plain error affecting appellant’s substantial rights.
    We also hold that the District Court did not clearly err in
    calculating the quantity of the liquids containing PCP that
    were the subject of the drug transactions. Under the clearly
    erroneous standard, the District Court’s findings of fact are
    presumptively correct. In re Sealed Case, 
    552 F.3d 841
    , 844
    (D.C. Cir. 2009). On the record before us, we find no basis to
    overcome this presumption.
    I. BACKGROUND
    A. Summary of the Facts
    In 2012, the Metropolitan Police Department (“MPD”)
    was investigating the sale of PCP in the District of Columbia.
    That investigation led an undercover MPD officer to contact
    someone named “Rico,” who steered the officer to his “Uncle
    Jimmy,” claiming that Jimmy was Rico’s PCP supplier. After
    failed attempts to contact Jimmy by telephone, appellant
    Kevin Mack texted the undercover officer and arranged to sell
    him PCP. On July 23, 2012, appellant sold six vials of liquid
    PCP to the undercover officer for $1,200. The transaction was
    video-recorded. A sample of the liquid was submitted to the
    4
    Drug Enforcement Administration (“DEA”) for analysis and
    determined to be PCP with a purity of 4.9%.
    Appellant and the undercover officer continued to
    exchange text messages after the first sale. They arranged
    another sale about a week after their first exchange, but when
    the MPD officer arrived at the second buy, appellant reported
    that he did not have the PCP prepared for delivery. A month
    later, appellant and the undercover officer arranged another
    meeting. On September 5, 2012, appellant sold six vials of
    liquid PCP to the undercover officer for $1,800. This
    transaction was also video-recorded. DEA later determined
    from a sample of the liquid that it was PCP with a purity of
    6.7%.
    For several months after the second PCP transaction,
    MPD deliberated over how to proceed with its investigation.
    Because the lead officer involved in appellant’s case became
    involved in a different matter, MPD decided to close the case
    and proceed with prosecution. On May 23, 2013, a grand jury
    charged appellant with one count of unlawful distribution of a
    mixture or substance containing PCP, and one count of
    unlawful distribution of one hundred grams or more of a
    mixture or substance containing PCP, in violation of 21
    U.S.C. § 841(a)(1), (b)(1)(B)(iv), (b)(1)(C).
    B. The Proceedings Before the District Court
    On April 30, 2014 and May 31, 2014, appellant filed
    motions to dismiss on the grounds of entrapment and selective
    prosecution. The District Court denied these motions. United
    States v. Mack, 
    53 F. Supp. 3d 179
    (D.D.C. 2014). The court
    ruled that no government agents “engaged in persuasive
    overtures” in soliciting appellant, “beyond those ordinarily
    present in drug transactions.” 
    Id. at 188.
    The court also found
    5
    that the government “did not solicit the Defendant directly,”
    and noted that the first sale “was initiated by the Defendant . .
    . out of his own volition.” 
    Id. Regarding the
    second PCP sale,
    the court noted that, although it “resulted from a series of text
    messages between the undercover officers and the
    Defendant,” there was “no evidence” of “persuasive
    overtures” by MPD officers or “any reluctance” on the part of
    appellant. 
    Id. The court
    additionally found that appellant had
    not provided any “factual predicate or evidentiary foundation”
    for his entrapment argument. 
    Id. Finally, the
    court rejected appellant’s claim of selective
    prosecution. On this claim, the court found that appellant had
    “not put forth a shred of evidence even hinting at the
    existence of a discriminatory purpose behind the decision to
    prosecute him.” 
    Id. On July
    21, 2014, appellant entered a guilty plea to Count
    One of the indictment. The plea agreement provided that the
    parties’ dispute over the drug quantity with respect to the
    relevant conduct would be resolved by the court as part of the
    sentencing procedures.
    1.   The Drug Quantity Hearing
    Before sentencing, the District Court held a hearing at
    which the prosecution offered evidence to support its
    calculation that the relevant drug quantity was 222 grams. The
    Government’s Brief to this court accurately describes the
    testimony and evidence that was received by the District
    Court:
    Officer Cardinal . . . stated that liquid PCP has
    a “distinct chemical odor,” typically a yellow or
    amber tint, and often contains engine starter fluid.
    6
    [He] explained [that when] . . . more than one
    ounce is obtained by MPD, it uses a process called
    “remediation” wherein it submits only one ounce
    from the larger sample to DEA. First, each separate
    vial is weighed on a calibrated scale. Next, each
    vial is tested with a field-test kit to determine if it
    has a reaction for PCP. Thereafter, the liquid in all
    the vials is emptied into a beaker and weighed
    together. The weight of the beaker is subtracted
    from that amount to get the weight of the liquid
    substance. Finally, a one-ounce sample is taken
    from the liquid mixture and sent to DEA. The
    remaining substance is sent to MPD’s evidence
    collection division for destruction. MPD officers
    document all of these steps with photographs.
    Officer Cardinal testified that he takes these steps
    because DEA [will] . . . only receive a maximum
    of one ounce of liquid PCP, due to its volatility.
    ....
    Regarding the transaction on July 23, 2012,
    Officer Cardinal introduced photographs showing
    the four half-ounce vials and two one ounce vials
    that the undercover officer had purchased from
    appellant, the positive field tests for PCP from
    each vial, and the other steps in the remediation
    process. All six vials contained liquid that was
    consistent in odor and color with liquid PCP. The
    Officer testified that the liquid PCP purchased
    from appellant on July 23 weighed 87.6 grams,
    without any packaging. One ounce (25.4 grams)
    was sampled from this mixture, secured in
    appropriate packaging, and sent to DEA’s Mid-
    Atlantic Laboratory. That sample was tested by
    7
    DEA and shown to contain PCP, with a 4.9%
    purity.
    Regarding the transaction on September 5,
    2012, Officer Cardinal introduced photographs
    showing the six one-ounce vials that the
    undercover officer had purchased from appellant,
    the positive field tests for PCP from each vial, and
    the other steps in the remediation process. All six
    vials contained liquid that was consistent in odor
    and color with liquid PCP. The Officer testified
    that the liquid PCP purchased on September 5
    weighed 133.4 grams, without any packaging. One
    ounce (25.1 grams) was sampled from this
    mixture, secured in appropriate packaging, and
    sent to DEA’s Mid-Atlantic Laboratory. That
    sample was tested by DEA and shown to contain
    PCP, with a 6.7% purity.
    Investigator Derek Starliper testified that he
    was part of the team that secured the liquid PCP
    purchased from appellant. . . . [H]e took physical
    custody of the vials from the undercover officer,
    packaged and labeled them, deposited them into
    the MPD evidence room, retrieved them for
    remediation by Officer Cardinal, and then
    submitted the sample produced from the
    remediation process to DEA.
    Br. for Appellee 6–9 (citations omitted).
    Appellant offered no evidence at the hearing. Instead,
    appellant submitted a Memorandum in which he questioned
    the reliability of the measurements and field tests conducted
    by MPD; argued that only the amount of drugs actually
    8
    measured and tested by DEA should be used to calculate the
    relevant drug quantity; and also argued that the alleged weight
    of the liquid PCP from the second transaction should not be
    included in the relevant drug quantity because the DEA
    chemist did not testify at the hearing.
    On May 14, 2015, the District Court issued an order
    finding that MPD “followed sufficiently reliable procedures
    when they handled and measured the weight of the drug
    evidence” and proved the relevant drug quantity beyond a
    preponderance of the evidence. Memorandum & Order at 10–
    11, United States v. Mack, No. 13-cr-0150 (D.D.C. May 14,
    2015), Supplemental Appendix (“S.A.”) 57–58. The District
    Court found no merit in appellant’s argument that the court
    should consider only the drug quantity sent to DEA. 
    Id. at 8–
    9, S.A. 55–56. The court pointed out that drug sampling
    procedures that were followed in this case were approved in
    United States v. Sheffield, 
    842 F. Supp. 2d 227
    , 228–29 & n.2
    (D.D.C. 2012), as well as United States v. McCutchen, 
    992 F.2d 22
    (3d Cir. 1993), and United States v. Self, 
    681 F.3d 190
    (3d Cir. 2012). 
    Id. at 8–
    9, S.A. 55–56.
    2.   The Sentencing Hearing
    Prior to sentencing, appellant filed a Memorandum
    requesting a “time-served” sentence. Appellant argued that he
    had been convicted in Maryland and was likely to be
    imprisoned there for five years or more; he was selectively
    prosecuted; he was solicited by police and the September 5,
    2012, transaction was engineered to increase the drug quantity
    amount; and he was inappropriately prosecuted in federal
    court instead of D.C. Superior Court. Appellant also
    submitted separate written objections to the calculation of his
    Sentencing Guidelines range in the Presentence Report, again
    9
    asserting that the court should consider only the drug quantity
    sent to DEA.
    During the sentencing hearing, the District Court listened
    to arguments from appellant’s counsel and the prosecutor.
    The prosecutor explained to the court that appellant had not
    been selectively prosecuted, but rather that there was not
    sufficient evidence to proceed against other parties. The
    District Court addressed this point in noting that “many of the
    individuals caught up in the PCP investigation that resulted in
    the instant matter did not face justice.” Tr. of Sentencing
    Hearing at 23, S.A. 159. The District Court also addressed
    appellant’s argument that he was arbitrarily prosecuted in
    federal court. The trial judge asked the prosecutor: “[I]n this
    particular case, what [were] the driving factors that resulted in
    it being brought here rather than in superior court?” 
    Id. at 15,
    S.A. 151. The prosecutor pointed to the amount of drugs and
    appellant’s criminal history. 
    Id. at 15–16,
    S.A. 151–52.
    The District Court imposed a 77-month term of
    incarceration and 36 months of supervised release, which
    would run concurrently with any sentence appellant served in
    his Maryland case. The court reviewed the sentencing factors
    in 18 U.S.C. § 3553(a), noting that the offense was “serious,
    PCP is a tremendously dangerous and destructive substance”
    and discussing appellant’s “tremendously long criminal
    history,” which included “repeated criminal convictions,”
    showing “that he is not easily deterred.” Tr. of Sentencing
    Hearing at 23, S.A. 159. The court also stated that appellant
    had been unsuccessful on repeated attempts at supervised
    release. The court rejected appellant’s request for a time-
    served sentenced because appellant had appealed his
    Maryland case and the court needed to “ensure[] the public’s
    protection” if appellant was successful in that appeal. 
    Id. at 24,
    S.A. 160.
    10
    There is nothing in the record, however, to indicate that
    the trial judge addressed appellant’s sentencing manipulation
    argument during the sentencing hearing. Appellant raised this
    claim in his written Memorandum before sentencing and
    again during defense counsel’s oral presentation at
    sentencing. But the trial judge never explicitly commented on
    appellant’s request for mitigation on the ground of sentencing
    manipulation.
    Although the trial judge did not expressly address
    sentencing manipulation during the course of sentencing,
    defense counsel declined two opportunities to object to the
    sentencing judge’s statement of reasons. After reciting his
    statement of reasons for appellant’s sentence, the trial judge
    said:
    I will now indicate the sentence to be imposed, but
    counsel will have one more opportunity to make
    any legal objections on the factors I have considered
    before I impose the sentence. Any further legal
    objections?
    
    Id. at 25,
    S.A. 161. Defense counsel replied “[n]o, Your
    Honor.” 
    Id. Then, after
    announcing appellant’s sentence and
    explaining the terms of his supervised release, the District
    Court again asked “Counsel, any reason that I should not
    impose the sentence other than those previously argued as just
    stated?” and defense counsel replied “[n]o, Your Honor.” 
    Id. at 27–28,
    S.A. 163–64.
    11
    II. ANALYSIS
    A. Standard of Review
    Following the Supreme Court’s decisions in United
    States v. Booker, 
    543 U.S. 220
    (2005), and Gall v. United
    States, 
    552 U.S. 38
    (2007), appellate courts review sentences
    under an abuse-of-discretion standard and set aside sentences
    found to be “unreasonable.” 
    Booker, 543 U.S. at 261
    –63;
    
    Gall, 552 U.S. at 51
    .
    This review proceeds in two steps. First, the appellate
    court must “ensure that the district court committed no
    significant procedural error, such as failing to calculate (or
    improperly calculating) the Guidelines range, treating the
    Guidelines as mandatory, failing to consider the § 3553(a)
    factors, selecting a sentence based on clearly erroneous facts,
    or failing to adequately explain the chosen sentence—
    including an explanation for any deviation from the
    Guidelines range.” 
    Gall, 552 U.S. at 51
    . “In applying the
    clearly erroneous standard, an appellate court must remain
    mindful that judicial findings of fact are presumptively
    correct.” In re Sealed 
    Case, 552 F.3d at 844
    (citations and
    internal quotation marks omitted). Second, the appellate court
    reviews the substantive reasonableness of the sentence under
    an abuse-of-discretion standard. Id.; see also United States v.
    Gardellini, 
    545 F.3d 1089
    , 1092–93 & n.2 (D.C. Cir. 2008).
    This case involves only the first step.
    When a party fails to preserve a procedural challenge to
    his sentence, we review for plain error. See 
    Locke, 664 F.3d at 357
    (“The more demanding plain error standard of review
    applies where a defendant fails to raise a claim at his
    sentencing hearing or fails to object to a district court's
    ruling.”); United States v. Akhigbe, 
    642 F.3d 1078
    , 1085
    12
    (D.C. Cir. 2011) (“[O]ur review is for plain error because . . .
    [the defendant] failed in the district court to object to the
    adequacy of that court's reasoning.”).
    “To overturn a district court's decision under plain error
    review, we must find that there is (1) error, (2) that is plain,
    and (3) that affects substantial rights. If all three conditions
    are satisfied, we have discretion to remedy the error only if
    (4) it seriously affects the fairness, integrity, or public
    reputation of judicial proceedings.” United States v. Baldwin,
    
    563 F.3d 490
    , 491 (D.C. Cir. 2009) (citations, brackets, and
    internal quotation marks omitted). To affect substantial rights,
    the defendant must “show a reasonable probability that, but
    for the error, the outcome of the proceeding would have been
    different.” Molina-Martinez v. United States, 
    136 S. Ct. 1338
    ,
    1343 (2016) (citation and internal quotation marks omitted).
    B. Appellant’s Procedural Challenges
    As noted above, a district court judge must “state in open
    court the reasons for its imposition of the particular sentence.”
    18 U.S.C. § 3553(c) (2012). The sentencing judge “must
    adequately explain the chosen sentence to allow for
    meaningful appellate review and to promote the perception of
    fair sentencing.” 
    Gall, 552 U.S. at 50
    . The judge need not
    recite “a full opinion in every case,” and the length and depth
    of the judge’s explanation “depends upon circumstances.”
    
    Rita, 551 U.S. at 356
    . The guiding principle is that “[t]he
    sentencing judge should set forth enough to satisfy the
    appellate court that he has considered the parties’ arguments
    and has a reasoned basis for exercising his own legal
    decisionmaking authority.” 
    Id. Part of
    the sentencing judge’s obligation under 3553(c) is
    to respond to a defendant’s “nonfrivolous reasons for
    13
    imposing a different sentence.” 
    Id. at 357.
    When a defendant
    advances nonfrivolous arguments, “the judge will normally go
    further and explain why he has rejected those arguments.” 
    Id. If the
    sentencing judge gives such an explanation, “we
    generally presume that he adequately considered the
    arguments and will uphold the sentence if it is otherwise
    reasonable.” 
    Locke, 664 F.3d at 358
    . By contrast, if the
    sentencing judge fails to respond to a nonfrivolous argument,
    the presumption of adequate consideration is rebutted. See
    United States v. Bigley, 
    786 F.3d 11
    , 14 (D.C. Cir. 2015).
    Appellant argues that “the record of the sentencing
    procedures includes no explanation by the district judge for
    not agreeing with, or even considering” several of his
    arguments for a below-Guidelines sentence. Br. for Appellant
    9. Specifically, appellant claims that the District Court did not
    consider the arguments that he was “selectively prosecuted,”
    that he was arbitrarily prosecuted in federal court (and not
    state court), and that the officers “solicited a second PCP
    transaction, in order to enlarge the guideline sentencing
    range.” 
    Id. at 8.
    The record largely contradicts those assertions. As
    discussed in detail in the Background section, the trial judge
    afforded appellant ample opportunities to air his concerns
    about sentencing; he explicitly addressed appellant’s selective
    and arbitrary prosecution arguments; he sought clarifications
    and explanations from the prosecutor; and he offered a
    carefully reasoned judgment for his sentencing decision. The
    judge’s only omission was his failure to explicitly address
    appellant’s sentencing manipulation claim.
    Prior to our 2015 decision in Bigley, there was
    uncertainty in our Circuit about whether sentencing
    manipulation was even a plausible argument for a reduced
    14
    sentence. See United States v. Oliveras, 359 Fed. App’x 257,
    261 n.5 (2d Cir. 2010) (summary order) (“Our sister Circuits
    have adopted widely different positions on the availability of
    the sentencing manipulation and sentencing entrapment
    doctrines. . . . [T]he D.C. Circuit has strongly suggested that it
    would not recognize either doctrine.”). However, as we
    explained in United States v. McKeever, 
    824 F.3d 1113
    , 1123
    (D.C. Cir. 2016), the “law of the circuit is now clear that a
    defendant may raise a mitigation argument resting on
    sentencing entrapment to request a downward variance in his
    sentence.”
    “Sentencing manipulation occurs when the government
    unfairly exaggerates the defendant's sentencing range by
    engaging in a longer-than-needed investigation and, thus,
    increasing the drug quantities for which the defendant is
    responsible.” United States v. Torres, 
    563 F.3d 731
    , 734 (8th
    Cir. 2009); see also 
    Bigley, 786 F.3d at 15
    (recognizing
    sentencing manipulation where an “officer ma[de] multiple
    drug buys from the defendant before finally arresting him”).
    In slight contrast, sentencing entrapment occurs “if the
    government induces a defendant to commit a more serious
    crime when he was predisposed to commit a less serious
    offense.” United States v. Walls, 
    70 F.3d 1323
    , 1329 (D.C.
    Cir. 1995). We have recognized both sentencing manipulation
    and sentencing entrapment, and a district court is obligated
    under 3553(c) and Rita to respond to those arguments. 
    Bigley, 786 F.3d at 14
    (“When a district court confronts a
    nonfrivolous argument for a sentence below the relevant
    guideline range, it must consider it.” (citing 
    Locke, 664 F.3d at 357
    )).
    In this case, defense counsel advanced a sentencing
    manipulation argument, albeit with little clarity. It would have
    helped if counsel had cited Bigley, which was published
    15
    before appellant’s sentencing proceeding, and before defense
    counsel filed his Memorandum in Aid of Sentencing.
    Nevertheless, counsel did raise a vaguely discernable
    sentencing manipulation argument in writing and orally.
    In his written Memorandum, defense counsel argued that
    “‘time served’ would be an appropriate sentence” because,
    among other reasons, “the second transaction (on 9/05/12) has
    served no other purpose than to enhance the drug quantity
    amount on which the Court will base its sentence.”
    Defendant’s Memorandum in Aid of Sentencing 3–4 (June
    26, 2015), Appendix for Appellant 21–22. At the sentencing
    hearing, defense counsel argued further that
    Mr. Mack was, for lack of a better term, lured into a
    second transaction and the net result of that
    transaction, it didn’t further the investigation, it
    didn’t result in any major breakthrough for the law
    enforcement. All it did was put Mr. Mack in a
    position of having a greater sentence than if he had
    been arrested within a short time following his first
    offense . . . .
    Tr. of Sentencing Hearing at 12, S.A. 148. And on appeal,
    defense counsel again alleged that “the MPDC officers had
    solicited a second PCP transaction, in order to enlarge the
    guideline sentencing range.” Br. for Appellant 8.
    Nevertheless, the transcript of the sentencing hearing shows
    that the District Court did not recognize or consider this
    argument at sentencing.
    Prior to sentencing, the District Court gave careful
    consideration to an argument closely related to appellant’s
    sentencing manipulation argument. In defense counsel’s
    motion to dismiss the indictment, counsel argued that the
    undercover officers “induced the defendant’s participation in
    16
    the PCP-for-money transaction on September 5, 2012 for the
    sole purpose of exposing the defendant to additional penal
    sanctions.” Omnibus Motion to Dismiss Indictment; to
    Compel Discovery; For a Severance of Counts; and, For a Bill
    of Particulars at 2, United States v. Mack, No. 13-cr-0150
    (D.D.C. May 31, 2014). The District Court rejected this
    argument in a published opinion denying the motion to
    dismiss. Mack, 
    53 F. Supp. 3d 179
    . The court found that
    the second drug sale, which resulted from a series of
    text messages between the undercover officers and
    the Defendant, does not amount to inducement as
    there is no evidence that the Government's requests
    were accompanied by persuasive overtures or that
    the Defendant displayed any reluctance in
    consummating the transaction. The Defendant has
    not provided the factual predicate or evidentiary
    foundation necessary to meet his initial burden of
    showing government inducement.
    
    Id. at 188
    (citation omitted). The defendant’s sentencing
    manipulation claim is essentially identical to his inducement
    claim: both allege that MPD officers improperly induced the
    second drug sale.
    Of course, the District Court’s prior consideration of
    appellant’s sentencing manipulation argument is not a perfect
    substitute for explicit recognition at the sentencing proceeding
    itself. We have previously explained that sentencing judges
    “must adequately explain the chosen sentence . . . not only for
    the defendant but also for the public to learn why the
    defendant received a particular sentence.” In re Sealed Case,
    
    527 F.3d 188
    , 193 (D.C. Cir. 2008) (citation and internal
    quotation marks omitted). Prior consideration of an argument
    in an earlier written opinion does less to adequately explain a
    17
    particular sentence than an explanation during the sentencing
    proceeding itself. However, the District Court’s prior written
    opinion at least confirms that the court considered all of the
    “nonfrivolous reasons” asserted for a lesser sentence. 
    Rita, 551 U.S. at 357
    . Indeed, the record reveals that the trial judge
    was consistently attentive to the concerns raised by appellant.
    And there is more to be taken into account with respect to the
    trial judge’s handling of sentencing.
    In Locke, we stressed the importance of affording a
    defendant an “opportunity to object to the district court’s
    sentencing determination at 
    sentencing.” 664 F.3d at 357
    .
    There is no claim here that appellant was denied an
    opportunity to pursue his sentencing manipulation claim at
    sentencing. It is unclear why defense counsel failed to raise an
    objection when the District Court never mentioned appellant’s
    sentencing manipulation argument. It may be that counsel
    recalled the judge’s opinion denying appellant’s motion to
    dismiss, in which the court rejected appellant’s claim that he
    had been “induced” by police officers to engage in the
    unlawful drug sales. Counsel may have decided that it would
    be fruitless to raise even a variation of the “inducement”
    argument again. In any event, it is clear that defense counsel
    did not object when the trial judge set forth the reasons
    supporting the sentencing decision without explicit reference
    to sentencing manipulation.
    The alleged error raised by appellant in this appeal is the
    District Court’s failure to address his sentencing manipulation
    argument at sentencing. However, that alleged error was
    muted when the trial judge asked defense counsel near the
    conclusion of sentencing whether he had “[a]ny further legal
    objections[.]” Tr. of Sentencing Hearing at 25, S.A. 161. In
    other words, before rendering his final judgment on
    sentencing, the trial judge essentially asked defense counsel
    18
    “have I missed anything?” And the judge queried defense
    counsel twice, and each time counsel said “No, Your Honor.”
    Any protest of the alleged error was therefore forfeited.
    When a defendant fails to raise objections at sentencing,
    we review only for plain error. United States v. Warren, 
    700 F.3d 528
    , 531 (D.C. Cir. 2012). As the Supreme Court has
    explained, there are good reasons for this rule:
    If a litigant believes that an error has occurred
    (to his detriment) during a federal judicial
    proceeding, he must object in order to preserve the
    issue. If he fails to do so in a timely manner, his
    claim for relief from the error is forfeited. No
    procedural principle is more familiar to this Court
    than that a . . . right may be forfeited in criminal as
    well as civil cases by the failure to make timely
    assertion of the right before a tribunal having
    jurisdiction to determine it.
    ....
    This limitation on appellate-court authority
    serves to induce the timely raising of claims and
    objections, which gives the district court the
    opportunity to consider and resolve them. That
    court is ordinarily in the best position to determine
    the relevant facts and adjudicate the dispute. In the
    case of an actual or invited procedural error, the
    district court can often correct or avoid the mistake
    so that it cannot possibly affect the ultimate
    outcome. And of course the contemporaneous-
    objection rule prevents a litigant from
    “sandbagging” the court—remaining silent about
    19
    his objection and belatedly raising the error only if
    the case does not conclude in his favor.
    In federal criminal cases, Rule 51(b) tells parties
    how to preserve claims of error: “by informing the
    court—when the court ruling or order is made or
    sought—of the action the party wishes the court to
    take, or the party's objection to the court's action
    and the grounds for that objection.” Failure to abide
    by this contemporaneous-objection rule ordinarily
    precludes the raising on appeal of the unpreserved
    claim of trial error. Rule 52(b), however, recognizes
    a limited exception to that preclusion. The Rule
    provides, in full: “A plain error that affects
    substantial rights may be considered even though it
    was not brought to the court's attention.”
    Puckett v. United States, 
    556 U.S. 129
    , 134–35 (2009)
    (citations and internal quotation marks omitted).
    On the record before us, we can find no basis upon which
    to overturn the judgment of the District Court. The trial judge
    gave appellant’s counsel two opportunities to contest the
    proposed sentencing decision before sentence was
    pronounced. Trial judges often are pressed with a long litany
    of claims during sentencing, so it may happen that a judge
    inadvertently fails to address a claim that a defendant believes
    to be of consequence. In these circumstances, if a trial judge –
    as in this case – asks defense counsel whether there are any
    further objections to sentencing, it is incumbent upon counsel
    to voice any concerns regarding matters that counsel believes
    have not been addressed by the judge. As the Supreme Court
    said in Puckett, this contemporaneous-objection rule prevents
    a litigant from “sandbagging” the trial judge.
    20
    Because appellant forfeited his objection that the trial
    judge erred in failing to address his sentencing manipulation
    argument, we review the objection pursuant to the plain error
    standard. As the Supreme Court makes clear in Puckett, plain
    error review does not mean that a defendant cannot prevail on
    a challenge to a sentencing decision. See, e.g., United States v.
    Brown, 
    808 F.3d 865
    (D.C. Cir. 2015) (vacating a sentence
    and remanding for resentencing because the appellate court
    was unable to discern the sentencing judge’s rationale for
    imposing an above-Guidelines sentence); United States v.
    Burroughs, 
    613 F.3d 233
    (D.C. Cir. 2010) (vacating a plainly
    erroneous condition of supervised release). Plain error review
    simply means that the standard of review is very stringent and
    the likelihood of prevailing on appeal is greatly diminished. In
    applying Rule 52(b), we will vacate a plain error only if it
    impinges upon the defendant’s “substantial rights,” FED. R.
    CRIM. P. 52(b), in a way that “seriously affect[s] the fairness,
    integrity or public reputation of judicial proceedings,” United
    States v. Olano, 
    507 U.S. 725
    , 736 (1993) (quoting United
    States v. Atkinson, 
    297 U.S. 157
    , 160 (1936)). On the record
    before us, we cannot find that appellant’s substantial rights
    have been affected.
    “A sentencing error affects substantial rights when there is
    a reasonable likelihood it impacted the sentence.” 
    Burroughs, 613 F.3d at 245
    . In light of the District Court’s decision
    denying appellant’s motion to dismiss the indictment, it is
    implausible to think that the error in this case impacted
    appellant’s sentence. The District Court’s decision in Mack
    clearly rejected appellant’s “inducement” claim, see 
    Mack, 53 F. Supp. 3d at 188
    , and that claim is essentially the same as
    appellant’s sentencing manipulation argument. The decision
    in Mack has not been contested, and for good reason. In our
    view, the District Court’s findings, reasoning, and judgment
    in Mack are eminently sound.
    21
    C. Drug Weight Calculation
    Finally, appellant argues that the District Court erred in
    calculating the drug weight attributable to him. He argues that
    the procedure used by MPD and DEA is not a “legally
    satisfactory proof of drug quantity.” Br. for Appellant 12. We
    review the District Court’s determination of drug quantity
    relevant for sentencing under a clear error standard. United
    States v. Burnett, 
    827 F.3d 1108
    , 1120 (D.C. Cir. 2016).
    There was no error here.
    After defense counsel called for an evidentiary hearing to
    determine the drug quantity for which appellant would be
    accountable, the District Court heard testimony from the
    officers who processed the PCP that appellant sold to the
    undercover officer. As detailed above, the officers testified
    and introduced photographs showing that after they seized
    multiple vials containing clear liquid in Mack’s possession,
    they field tested each vial for PCP. Then, the officer
    calibrated a scale, combined all of the liquid PCP into a
    beaker, and weighed the aggregate PCP. Next, the officer
    removed a one-ounce sample from the aggregated liquid PCP
    in the beaker, packaged it, and sent it to the DEA’s Mid-
    Atlantic lab for testing. The officer used this same
    methodology to process the vials from both the first and
    second drug sales. The District Court credited this testimony
    and evidence in upholding MPD procedures. This was not
    clear error.
    Defense counsel claims that appellant should only be
    accountable for the two one-ounce samples (roughly 50
    grams) sent to the DEA’s lab, and not for the aggregate
    quantity of PCP in the vials field tested and weighed by MPD.
    The District Court rejected this argument after the evidentiary
    hearing. Appellant’s sole challenge to this finding is that
    22
    MPD’s testing procedures were not authorized by 28 CFR §
    50.21, which appellant claims governs only DEA’s drug
    testing procedures. Br. for Appellant 11–12. This argument
    misses the mark. MPD’s drug processing procedures do not
    need to be authorized by any federal regulations to provide
    valid, satisfactory proof of drug quantity. See 
    McCutchen, 992 F.2d at 25
    –26 (upholding processing technique to determine
    drug quantity for sentencing where the government
    extrapolated from a test sample).
    “A district court makes findings of drug quantities under
    a preponderance of the evidence standard.” 
    Burnett, 827 F.3d at 1120
    (citing United States v. Fields, 
    325 F.3d 286
    , 289
    (D.C. Cir. 2003)). Appellant has not raised, nor do we
    perceive, any error with the District Court’s calculation of
    PCP attributable to appellant.
    III. CONCLUSION
    For the reasons set forth above, we affirm the judgment of
    the District Court.