United States v. David Bowser ( 2020 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued March 9, 2020                   Decided June 30, 2020
    No. 18-3055
    UNITED STATES OF AMERICA,
    APPELLANT
    v.
    DAVID G. BOWSER,
    APPELLEE
    Consolidated with 18-3062, 19-3037
    Appeals from the United States District Court
    for the District of Columbia
    (No. 1:16-cr-00059-1)
    Leslie McAdoo Gordon argued the cause and filed the
    briefs for appellant/cross-appellee.
    James Pearce, Attorney, U.S. Department of Justice,
    argued the cause for appellee/cross-appellant. With him on the
    briefs was Todd W. Gee, Deputy Chief. Elizabeth Trosman,
    Assistant U.S. Attorney, entered an appearance.
    Before: HENDERSON, GRIFFITH, and WILKINS, Circuit
    Judges.
    2
    Opinion for the Court filed by Circuit Judge GRIFFITH.
    GRIFFITH, Circuit Judge: A jury convicted David G.
    Bowser of charges that he obstructed an investigation by the
    Office of Congressional Ethics into his work as chief of staff to
    a Member of Congress. In this appeal, we affirm the jury’s
    verdict and the post-trial rulings of the district court from all
    challenges by Bowser and the Government.
    I
    A
    The evidence at trial established the following. Bowser
    began working as the chief of staff for Paul Broun, a Member
    of the House of Representatives from Georgia, in January
    2009. Representative Broun first joined Congress after winning
    a special election in 2007, and he was easily re-elected in 2008
    and 2010.
    In January 2012, Bowser was confident that
    Representative Broun would again retain his seat after the
    primary and general elections later that year. But even winning
    politicians have flaws, and Representative Broun’s was—
    according to Bowser—that he struggled with “messaging.”
    Trial Tr. 32:16 (Mar. 15, 2018), J.A. 573. So in February 2012,
    just as Representative Broun’s office was gearing up for
    another election, Bowser sought to hire a “messaging
    consultant” to help the Congressman “develop as a better
    communicator.” J.A. 672. Brett O’Donnell was a seasoned
    consultant with experience preparing President George W.
    Bush and Senator John McCain for presidential debates. On
    June 14, Bowser announced to the Congressman’s office that
    O’Donnell would join “Team Broun as a communications and
    messaging consultant to our official office.” J.A. 807.
    3
    Despite Bowser’s explanation that the new hire would help
    only with official duties, O’Donnell soon found himself
    working on the Congressman’s re-election campaign. In fact,
    on the same day that Bowser hired O’Donnell, he asked him to
    assist with the Congressman’s debate preparation. Just a week
    later, O’Donnell prepared Representative Broun for yet another
    debate. This shift in duties surprised O’Donnell. He testified at
    trial that he felt like Bowser pulled a “bait and switch” by
    retaining him “to do work for the official side” and then asking
    him to perform campaign functions. Trial Tr. 52:13-20 (Mar.
    1, 2018), J.A. 294.
    O’Donnell’s campaign duties soon decreased. In July
    2012, the Congressman won the Republican primary, and he
    faced no serious opposition in the general election. But in early
    2013, an incumbent Senator from Georgia announced his
    retirement, and Representative Broun decided to seek the
    vacant seat. O’Donnell once again found himself saddled with
    campaign duties. He helped prepare the Congressman for eight
    Republican primary debates and several campaign-related
    speeches and interviews. O’Donnell testified at trial that, in
    early 2013, he “was doing 60 percent official work, 40 percent
    campaign work”; by the end of 2013, he performed “easily 80
    percent campaign work, 20 percent official work.” Trial Tr.
    101:19-22 (Mar. 5, 2018), J.A. 320.
    Nothing prevented O’Donnell from assisting the campaign
    as a volunteer or campaign employee, but House Rules forbade
    the Congressman’s office from paying O’Donnell out of the
    “Members’ Representational Allowance” (MRA). The MRA
    provides funds “to support the conduct of the official and
    representational duties of a Member of the House of
    Representatives,” 2 U.S.C. § 5341(a); see also IDA A.
    BRUDNICK, CONG. RESEARCH SERV., R40962, MEMBERS’
    4
    REPRESENTATIONAL ALLOWANCE: HISTORY AND USAGE
    (2019), and the funds may not pay for campaign expenses.
    Between June 2012 and March 2014, O’Donnell was paid over
    $40,000 from the Congressman’s MRA funds. With one minor
    exception not relevant here, O’Donnell was paid only with
    MRA funds.
    This possible misuse of congressional funds soon attracted
    media scrutiny. In March 2014, a reporter asked Representative
    Broun whether O’Donnell had been paid with taxpayer money
    to provide debate coaching. The Congressman allegedly
    slammed the door in the reporter’s face, and a local news outlet
    published a story with the descriptive title, “Congressman
    Slams Door on Channel 2 Reporter When Asked About
    Campaign Coach.” Because of this press report, O’Donnell was
    fired. He testified that Bowser informed him that “things [had]
    just gotten too hot with this story, that it would do damage to
    the campaign.” Trial Tr. 55:24-25, 56:1 (Mar. 5, 2018), J.A.
    333-34. O’Donnell also testified that, during the same
    conversation, Bowser told him for the first time that he had
    been only a “volunteer with the campaign.”
    Id. at 56:16-24,
    J.A. 334 (emphasis added). On March 25, Bowser emailed the
    staff in the office to announce that Representative Broun
    “reluctantly accepted [O’Donnell’s] resignation.” J.A. 823.
    This media attention also spurred an inquiry from the
    Office of Congressional Ethics (OCE or the “Office”). The
    OCE is “an independent office” within the House that reports
    to the House Committee on Ethics and investigates possible
    misconduct by Members of Congress or their employees. H.R.
    Res. 895, 110th Cong. § 1(a) (2008); see JACOB R. STRAUS,
    CONG. RESEARCH SERV., R40760, HOUSE OFFICE OF
    CONGRESSIONAL ETHICS: HISTORY, AUTHORITY, AND
    PROCEDURES (2019). The Speaker of the House and the House
    Minority Leader each appoint three private citizens to serve on
    5
    the Board, see H.R. Res. 895, 110th Cong. § 1(b) (2008), and
    the OCE hires additional staff to conduct its day-to-day
    business, see
    id. § 1(h).
    The Office may receive allegations of
    possible misconduct “from any source,” including news reports
    and submissions from the public. Trial Tr. 60:9-19 (Mar. 8,
    2018), J.A. 458. And when two Board members authorize a
    “preliminary review,” the Office’s staff must review the
    allegations and make a recommendation to the Board. If the
    Board concludes that misconduct occurred, it may
    “recommend[]” that the investigated matter “requires further
    review” by the Ethics Committee itself. H.R. Res. 895, 110th
    Cong. § 1(c)(2)(B) (2008).
    On April 1, 2014, OCE began such a preliminary review,
    informing Representative Broun that if he “misused funds from
    his [MRA]” to pay O’Donnell then “he may have violated
    House rules and federal law.” J.A. 679. Bowser promptly
    emailed O’Donnell to reiterate his view that any assistance on
    the campaign was voluntary; he had been paid for only official
    work. “We hired you,” Bowser wrote, “in an official capacity
    to help the Congressman improve his speaking abilities.” J.A.
    824. “Any debate advice you wanted to give him on your own
    time, outside the official compound, has no bearing on the fact
    that we hired you to work in an official capacity . . . .”
    Id. In June,
    the Office issued a series of “Requests for
    Information” (RFIs) to the Congressman’s staff, asking for
    “[a]ll files, records, notes, communications, and any other
    documents relating to Brett O’Donnell.” J.A. 683. Bowser’s
    interference continued. For instance, one staffer testified that
    he believed that Bowser instructed him to falsely certify that he
    “didn’t have any information relevant” to the review. Trial Tr.
    67:10 (Mar. 12, 2018), J.A. 501. Another testified that—on
    Bowser’s instructions—she withheld campaign-related emails
    that she had exchanged with O’Donnell, Trial Tr. 83-85 (Mar.
    6
    7, 2018), J.A. 401-03, including some from her official account
    that “looked bad for the office,”
    id. at 86:4,
    J.A. 404.
    Bowser also received his own RFI, and although Bowser
    turned over emails from his official email account, he never
    disclosed any emails that he exchanged with O’Donnell on his
    personal account. Bowser also misled investigators about his
    reasons for hiring O’Donnell. During his OCE interview, for
    instance, he claimed that “at no point did we ever entertain the
    idea that this would be a political adventure. This was purely
    on the official side.” J.A. 701.
    The Office’s review ended on June 25, 2014, and the
    Board recommended that the Ethics Committee investigate
    misconduct in Representative Broun’s office. But the
    committee took no disciplinary action against the
    Congressman. Representative Broun lost the Senate primary
    and left office in January 2015, placing him beyond the
    committee’s jurisdiction.
    B
    Though the Office’s review never culminated in
    disciplinary action against the former Congressman, it
    spawned this criminal prosecution against his chief of staff. On
    April 6, 2016, a grand jury charged Bowser with obstruction of
    Congress (Count One), see 18 U.S.C. § 1505; theft of
    government funds (Count Two), see
    id. § 641;
    concealment of
    material facts from the OCE (Count Three), see
    id. § 1001(a)(1);
    and five counts of making false statements to the
    OCE (Counts Four through Eight), see
    id. § 1001(a)(2).
    The case proceeded to trial. After the Government
    presented its case-in-chief, Bowser filed a motion for
    judgments of acquittal on Counts One through Seven. The
    7
    district court reserved ruling on this motion, proceeded with the
    trial, then submitted the case to the jury. See FED. R. CRIM. P.
    29(b). The jury convicted Bowser of obstructing Congress,
    concealing material facts from OCE, and making three false
    statements. The jury acquitted Bowser of two of the false-
    statement charges. The jury also indicated that it was
    “hopelessly deadlocked” on the theft charge, and the district
    court declared a mistrial on that count. J.A. 105.
    The district court then considered Bowser’s motion for
    judgments of acquittal. At the Government’s request, the
    district court dismissed the theft charge with prejudice. Next,
    the district court granted Bowser’s motion for acquittal on the
    obstruction-of-Congress charge, reasoning that § 1505 does
    not “protect the OCE’s investigatory power.” J.A. 103. Finally,
    the district court denied the motion for judgments of acquittal
    on the concealment conviction and his false-statement
    convictions.
    This appeal followed. The Government challenges the
    district court’s decision to grant a judgment of acquittal on the
    obstruction-of-Congress charge. Bowser challenges his
    concealment conviction, two of the false-statement
    convictions, and the district court’s decision to dismiss the theft
    charge with prejudice instead of granting a judgment of
    acquittal. Last, Bowser claims that, because he should have
    been acquitted on some of these counts, “spillover prejudice”
    requires us to vacate his convictions on the false-statement
    charges. We reject both parties’ arguments and affirm.
    II
    We begin with the Government’s appeal of the district
    court’s order granting a judgment of acquittal on Bowser’s
    obstruction-of-Congress charge. See 18 U.S.C. § 1505. That
    8
    statute criminalizes the obstruction of “any inquiry or
    investigation [that] is being had by either House, or any
    committee of either House or any joint committee of the
    Congress.”
    Id. The Government
    concedes that the Office is
    neither a “House,” nor a “committee,” nor a “joint committee.”
    Gov’t Br. 49, 53 n.16. Instead, the Government emphasizes that
    the statute extends to any investigations “being had by” the
    House, which covers the Office’s investigations because “the
    House itself initiated [them] through creating the OCE in the
    first place.”
    Id. at 48.
    We disagree. Section 1505’s specific reference to “either
    House,” “any committee,” and “any joint committee” implies
    that Congress meant to exclude other bodies within the
    Legislative Branch. See Taylor v. FAA, 
    895 F.3d 56
    , 65 (D.C.
    Cir. 2018) (“[T]he expression of one thing implies the
    exclusion of others.”). Indeed, the statute’s failure to include
    other congressional “offices” is especially strong evidence of
    meaning here because other statutes do. For instance, the False
    Statements Act applies to “any investigation or review,
    conducted pursuant to the authority of any committee,
    subcommittee, commission or office of the Congress.” 18
    U.S.C. § 1001(c)(2) (emphasis added); see also 18 U.S.C.
    § 202(e)(3) (defining the “legislative branch” to include both
    “the Congress” and “any other . . . office . . . established in the
    legislative branch” (emphasis added)). Congress knows how to
    refer to legislative offices when it chooses, and we must give
    effect to the statute’s tailored language.
    Attempting to side-step this textual argument, the
    Government urges that the Office’s reviews are investigations
    “being had by” the House or the Ethics Committee itself
    because the Office functions as their “agent.” Gov’t Br. 51-53
    (citing United States v. Senffner, 
    280 F.3d 755
    , 760 (7th Cir.
    2002) (“[W]henever an entity acting for or at the direct request
    9
    of an agency has been obstructed, the agency itself has also
    been obstructed.”)). The argument fails. First, the
    Government’s agency theory creates surplusage; if § 1505
    were interpreted to criminalize obstruction of Congress’s
    “agents,” then the statute’s inclusion of “committees” and
    “joint committees” would do little or no work. Moreover, the
    House Rules themselves establish that the Office’s review
    process is not yet an investigation by the House or the Ethics
    Committee. The Office possesses only the limited power to
    recommend that the allegations “require[] further review” by
    the Ethics Committee, H.R. Res. 895, 110th Cong. § 1(c)(2)(B)
    (2008), and the committee may “undertake an investigation”
    “upon receipt of a report” from the OCE. Rules of the House
    of Representatives, 116th Cong., Rule XI.3(b)(2) (2019)
    (emphasis added). If the Ethics Committee “undertake[s] an
    investigation” only after it receives the Office’s report, then the
    process of creating that report cannot be an investigation
    “being had by” the House or its committee.
    We need not decide whether or in precisely what
    circumstances a legislative office might work so closely with
    the House or a committee that the investigation is “being had
    by” an institution listed within § 1505. See 
    Senffner, 280 F.3d at 760
    . We hold only that—in these circumstances—the House
    has structured its internal procedures such that the Office’s
    reviews precede any investigation by the House or the Ethics
    Committee. If Congress wishes to extend liability to those who
    obstruct the work of the Office, it may do so, and it has model
    language for such an amendment in the False Statements Act.
    See 18 U.S.C. § 1001(c)(2). We thus affirm the judgment of
    acquittal on the obstruction-of-Congress charge.
    III
    We next consider Bowser’s challenges to his convictions.
    10
    A
    First, Bowser argues that the district court should have
    granted his motion for a judgment of acquittal on the
    concealment charge. See 18 U.S.C. § 1001(a)(1), (c)(2). Of
    relevance here, that statute makes it unlawful to “conceal[] . . .
    a material fact” during “any investigation or review” by an
    “office of the Congress.”
    Id. To secure
    a conviction, the
    Government must establish a “duty to disclose material facts
    on the basis of specific requirements for disclosure of specific
    information.” United States v. Safavian, 
    528 F.3d 957
    , 964
    (D.C. Cir. 2008). Bowser asserts that he had no such duty to
    disclose because “OCE’s review was an entirely voluntary
    process,” and “there [was] no statute, regulation, or form that
    imposed on [him] a specific requirement to disclose particular
    information.” Bowser Br. 47.
    We disagree. Bowser does not dispute that he failed to
    produce emails from his personal account between himself and
    O’Donnell. He also conceded at oral argument that a
    government “form” can impose a duty to disclose. Oral Arg.
    Tr. 32:24-25; see also 
    Safavian, 528 F.3d at 965
    n.7; United
    States v. Calhoon, 
    97 F.3d 518
    , 526 (11th Cir. 1996). Here, the
    form that Bowser received—the Request for Information—
    identified the “specific information” that the Office sought, all
    communications with O’Donnell. That form also advised
    Bowser that he would need to “certify” that he “provided all
    [responsive] documents,” and that this certification would be
    “subject to the provisions of the Federal False Statements Act,
    18 U.S.C. § 1001.” J.A. 835. Later, he signed two documents
    certifying that he had fully complied with the RFI and
    acknowledging that 18 U.S.C. § 1001 applied to his disclosure
    of information. J.A. 837, 839. Altogether, Bowser affirmed that
    he fully complied with a request for specific information that
    11
    was issued during a duly authorized ethics inquiry. These facts
    establish a duty to disclose.
    Bowser’s efforts to compare his case to Safavian fail. In
    that case, the defendant—David Safavian—was an employee
    of the General Services Administration (GSA). 
    Safavian, 528 F.3d at 959
    . One of Safavian’s friends conducted some
    business before GSA, and that friend invited Safavian to travel
    to Scotland on a chartered plane for a five-day golfing trip.
    Id. Safavian sought
    “an ethics opinion from GSA’s general
    counsel about whether he could accept the air transportation as
    a gift,” but he never disclosed that the friend conducted
    business before the GSA.
    Id. at 960,
    962. Later, GSA’s
    Inspector General opened an investigation into the trip;
    Safavian agreed to be interviewed, but he again failed to
    disclose that his friend conducted business before GSA.
    Id. at 961.
    A jury convicted Safavian of two counts of concealment—
    one for withholding information when he requested the ethics
    opinion, the other for his incomplete answers to the Inspector
    General.
    Id. at 962-63.
    We reversed, reasoning that § 1001(a)(1) requires the
    Government to establish “a duty to disclose material facts on
    the basis of specific requirements for disclosure of specific
    information.”
    Id. at 964
    (emphasis added). In Safavian, the
    Government asserted two insufficient bases for this duty. First,
    it pointed to what we characterized as “vague standards of
    conduct for government employees,” such as an instruction to
    refrain from “us[ing] public office for private gain.”
    Id.
    at 964
    (internal quotation marks omitted). Second, the Government
    argued that “once one begins speaking when seeking
    government action or in response to questioning, one must
    disclose all relevant facts.”
    Id. at 965.
    But neither of these
    sources triggered a duty to disclose because neither gave “fair
    12
    notice of what conduct [was] forbidden.”
    Id. at 964
    (internal
    quotation marks omitted).
    Unlike the defendant in Safavian, Bowser did have “fair
    notice” that he could be criminally prosecuted. The RFI
    identified the specific information sought and informed him of
    possible criminal liability under § 1001 if he withheld it.
    Bowser seems to think that a voluntary process like an ethics
    inquiry can never create a duty to disclose, but that stretches
    Safavian too far. Section 1001 extends to “any investigation or
    review” by an “office of the Congress,” 18 U.S.C. § 1001(c)(2)
    (emphasis added), and that language easily encompasses the
    OCE’s voluntary ethics investigations—so long as the
    investigator gives “fair notice.” Because the form distributed to
    and signed by Bowser satisfies this requirement, we affirm the
    concealment conviction.
    B
    Bowser next argues that the district court should have
    granted judgments of acquittal on two of the false-statement
    charges, Counts Four and Seven. See 18 US.C. § 1001(a)(1).
    Count Four charged Bowser with making a false statement
    when he told the OCE investigators, “At no point did we ever
    entertain the idea that this [O’Donnell’s services] would be a
    political adventure. This was purely on the official side.”
    Indictment ¶ 86, J.A. 67 (emphasis added). And likewise in
    Count Seven: “I mean, bottom line is this was done because
    [Representative Broun] significantly needed help in his
    communicating ability and that’s the only reason why it was
    done and, you know, we had no intention at all of doing
    anything on the political side with this.”
    Id. ¶ 92,
    J.A. 70
    (emphasis added). Bowser raises three challenges to these
    convictions, but none is persuasive.
    13
    1
    Bowser claims that his false-statement convictions are
    nonjusticiable under United States v. Rostenkowski, 
    59 F.3d 1291
    (D.C. Cir. 1995). There, we noted that the Constitution’s
    Rulemaking Clause authorizes each House of Congress to
    “determine the Rules of its Proceedings,” U.S. CONST. art. I,
    § 5, and we reasoned that “judicial interpretation of an
    ambiguous House Rule runs the risk of the court intruding into
    the sphere of influence reserved to the legislative branch under
    the Constitution.” 
    Rostenkowski, 59 F.3d at 1306
    . Under
    Rostenkowski, then, a charge may be nonjusticiable if it
    compels the jury to interpret an “ambiguous” House Rule.
    Bowser says that his false-statement convictions must be
    dismissed under Rostenkowski. He notes that the House Rules
    authorize Congressmen to use MRA funds for “primarily
    official duties that are not campaign related.” J.A. 199-201.
    Bowser suggests that the false-statement charges invited the
    jury to interpret the House Rules by determining Bowser’s
    “primary purpose” in hiring O’Donnell. Bowser Br. 50-51.
    Bowser’s Rostenkowski argument fails. As discussed, the
    Government alleged that Bowser falsely stated that he expected
    O’Donnell to perform only official work—not campaign work.
    E.g., Indictment ¶ 86, J.A. 67 (“This was purely on the official
    side.”). That allegation does not implicate the House Rules at
    all. The Rules concern whether O’Donnell could be
    compensated with congressional funds; the allegations
    supporting the false-statement charges concern only what kind
    of work Bowser anticipated that O’Donnell would perform.
    Accordingly, the jury could convict Bowser of making these
    false statements without interpreting the House Rules, and so
    the charges were justiciable.
    14
    2
    Bowser argues that the jury lacked sufficient evidence to
    conclude that his statements to the OCE investigators were
    false. We owe “tremendous deference” to the jury’s verdict,
    United States v. Long, 
    905 F.2d 1572
    , 1576 (D.C. Cir. 1990),
    and Bowser’s conviction must be upheld if “any rational trier
    of fact could have found the essential elements of the crime
    beyond a reasonable doubt.” United States v. Wahl, 
    290 F.3d 370
    , 375 (D.C. Cir. 2002) (internal quotation marks omitted).
    The standard of review presents an insurmountable hurdle
    for Bowser. As the district court noted, a “voluminous record”
    supports the jury’s verdict that Bowser always intended for
    O’Donnell to perform campaign work. J.A. 122. For instance,
    Bowser conducted O’Donnell’s interview in the offices of the
    National Republican Campaign Committee, a venue where
    Republican Congressmen perform campaign activities that
    would be impermissible in congressional office buildings.
    Perhaps most tellingly, just two hours after Bowser officially
    hired O’Donnell, Bowser asked O’Donnell to assist with
    debate preparation. And O’Donnell testified that—just a month
    after he had been hired—he felt like Bowser had pulled a “bait
    and switch” by “retaining [him] to do work for the official side”
    and then asking him to perform campaign functions. Trial Tr.
    52:13-20 (Mar. 1, 2018), J.A. 294.
    Bowser offers an alternative interpretation. He suggests
    that Representative Broun “had no need for campaign
    assistance” when Bowser first hired O’Donnell because the
    Congressman faced only “token opposition” in the 2012
    election. Bowser Br. 55-56. But the jury is entitled to “draw a
    vast range of reasonable inferences,” 
    Long, 905 F.2d at 1576
    ,
    and a rational factfinder could infer that Bowser always
    15
    expected to enlist O’Donnell on the campaign, regardless of its
    competitiveness. We decline to overturn the jury’s verdict.
    3
    Finally, Bowser challenges the jury instructions. The
    district court instructed the jury that the statement must have
    been “false, fictitious, or fraudulent”—an instruction that
    precisely tracks the statute’s language. J.A. 627; 18 U.S.C.
    § 1001(a)(2). Bowser claims that the jury should’ve been
    instructed that Bowser’s statements “were false under any
    reasonable interpretation of them.” Bowser Br. 58. Bowser
    relies exclusively on the out-of-circuit decision in United States
    v. Migliaccio, 
    34 F.3d 1517
    (10th Cir. 1994), but he fails to
    explain—and we fail to see—that decision’s relevance here.
    We thus decline to adopt Bowser’s proposed jury instruction.
    C
    After the jury deadlocked on the theft charge, the district
    court dismissed the charge with prejudice. See FED. R. CRIM.
    P. 48(a). Unsatisfied with that result, Bowser argues that he
    “should have been acquitted at the close of the Government’s
    case.” Bowser Br. 34 (emphasis added). Bowser again relies on
    Rostenkowski, arguing that the theft charge “asked the jury to
    invade the legislative province” by “interpret[ing] internal
    rules adopted by the House to govern its own Members.”
    Id. at 38-39.
    The Government responds that this claim is moot, see
    Gov’t Br. 23-25, and we must first address this threshold
    jurisdictional issue. Bowser’s claim becomes moot only if “it
    is impossible for a court to grant any effectual relief whatever.”
    Chafin v. Chafin, 
    568 U.S. 165
    , 172 (2013) (internal quotation
    16
    marks omitted); see also Almaqrami v. Pompeo, 
    933 F.3d 774
    ,
    779 (D.C. Cir. 2019).
    Bowser contends that the case remains live “because he
    has a right to clear his good name.” Bowser Reply 8. The
    “dismissal did not exonerate him,” Bowser says, so he is
    entitled to seek the judgment of acquittal, which would amount
    to a ruling that he “was in fact innocent.”
    Id. We disagree.
    Bowser’s Rostenkowski argument entitles him—at most—to a
    dismissal of the allegations against him because they lie
    beyond a federal court’s authority to adjudicate. A favorable
    ruling under Rostenkowski would not announce his innocence;
    instead, it would announce that trying the theft charge risks
    judicial intrusion “into the sphere of influence reserved to the
    legislative branch.” 
    Rostenkowski, 59 F.3d at 1306
    . Because
    Bowser’s argument under Rostenkowski would not entitle him
    to the declaration of innocence that he seeks, we cannot redress
    this alleged reputational harm.
    Bowser next claims that “he was prejudiced with respect
    to the other charges by [the theft charge’s] existence.” Bowser
    Reply 9. When addressing mootness, we must assume the
    success of his argument on the merits. 
    Almaqrami, 933 F.3d at 779
    . And if Bowser were correct, we could redress that harm
    by vacating for another trial on the other charges. See United
    States v. Rooney, 
    37 F.3d 847
    , 855 (2d Cir. 1994). This
    potential remedy keeps Bowser’s claim alive—but barely. We
    do not think that Bowser really did suffer prejudice from the
    district court’s refusal to acquit him before submitting the theft
    charge to the jury. Again, the Government presented
    overwhelming evidence that Bowser withheld information
    from and lied to the Office—the factual bases for his remaining
    convictions. We thus cannot see the theft charge’s “substantial
    and injurious effect or influence in determining the jury’s
    verdict.” United States v. Baugham, 
    449 F.3d 167
    , 174 (D.C.
    17
    Cir. 2006) (internal quotation marks omitted). Because any
    error was harmless, we need not address the merits of Bowser’s
    Rostenkowski argument.
    D
    Finally, Bowser claims that we must reverse three of his
    false-statement convictions because of a “prejudicial spillover
    of evidence” from allowing the jury to consider the theft,
    obstruction, and concealment charges. Bowser Br. 59 (citing
    
    Rooney, 37 F.3d at 855
    ); cf. United States v. Mathis, 
    216 F.3d 18
    , 25 (D.C. Cir. 2000) (discussing the possibility of
    prejudicial error “when multiple defendants are charged with a
    large and complex conspiracy and spillover prejudice confuses
    the jurors”). He faults the district court because the jury
    “should have been instructed to disregard the evidence”
    relating to these counts. Bowser Br. 61. But as we’ve
    explained, overwhelming evidence supports the jury’s verdict
    on the false-statement charges. 
    Rooney, 37 F.3d at 855
    -56
    (considering the “strength of the government’s case on the
    counts in question” when assessing spillover prejudice). Thus,
    any failure to instruct the jury to ignore evidence presented for
    other counts was harmless, and we decline to vacate Bowser’s
    convictions. See 
    Baugham, 449 F.3d at 174
    .
    IV
    We affirm the judgment of the district court.
    So ordered.