Upon consideration of the emergency motion for injunction pending appeal, the opposition thereto, the reply, and the letter regarding case status, it is

ORDERED that the motion for injunction be granted to the extent that appellees Todd Blanche, Paul Perkins, Sergio Gor, Trent Morse, and the Executive Office of the President, and their subordinates and agents, are hereby enjoined from interfering with appellant’s service as Register of Copyrights and Director of the U.S. Copyright Office pending further order of the court. To that extent, appellant has satisfied the stringent requirements for an injunction pending appeal. See Winter v. Natural Res. Def. Council, Inc., 555 U.S. 7, 20 (2008); D.C. Circuit Handbook of Practice and Internal Procedures 33 (2025); see also Severino v. Biden, 71 F.4th 1038, 1042 (D.C. Cir. 2023) (explaining that a “court generally may not ‘enjoin the President in the performance of his official duties’” (quoting Franklin v. Massachusetts, 505 U.S. 788, 802-03 (1992) (plurality opinion))). A concurring statement of Circuit Judge Pan, joined by Circuit Judge Childs, and a dissenting statement of Circuit Judge Walker are attached.

FOR THE COURT: Clifton B. Cislak, Clerk

BY: /s/ Lynda M. Flippin Deputy Clerk Page 2The Register of Copyrights (the “Register”) is a unique position within the Legislative Branch, housed within the Library of Congress. The Register serves as the Director of the U.S. Copyright Office and is the primary advisor to Congress on copyright issues.¹⁷ U.S.C. § 701(b)(1). The Librarian of Congress appoints and supervises the Register. Id. § 701(a). And only the Librarian of Congress has authority to remove the Register. That much is undisputed.

Shira Perlmutter has served as the Register since October 2020, when she was duly appointed by the Librarian of Congress. On May 9, 2025, Perlmutter released a prepublication version of a report analyzing the use of copyrighted materials to train generative artificial-intelligence models (the “AI Report”). Perlmutter prepared the report in fulfillment of her statutory duty to '[c]onduct studies' and “[a]dvise Congress on national and international issues relating to copyright.'¹⁷ U.S.C. § 701(b)(1), (4). As Register, she supports Congress’s enumerated constitutional power to enact copyright laws that 'promote the Progress of Science and useful Arts.” U.S. Const. art. I, § 8, cl. 8.

When Perlmutter’s AI Report was released, the President allegedly disagreed with its recommendations. And the next day — a Saturday — the White House Presidential Personnel Office notified Perlmutter by email that she had been terminated from her position “effective immediately.”

Perlmutter sued to block her removal, seeking declaratory and injunctive relief. The district court denied Perlmutter's request for a preliminary injunction that would have allowed her to remain in her post until the litigation concluded. The district court based its ruling solely on its determination that Perlmutter had failed to show that she would suffer irreparable Page 3harm from her immediate removal. It relied on precedents which hold that the President’s desire to remove an official who exercises executive power generally outweighs the official's interest in performing her duties. But the district court abused its discretion by failing to consider “unusual actions relating to the discharge itself” and a “genuinely extraordinary situation” - factors that inform the irreparable-harm analysis and distinguish this case from other removal cases. Sampson v. Murray , 415 U.S. 61, 92 n.68 (1974).

The “unusual” and “extraordinary” features of this case include the following: (1) Perlmutter alleges an unprecedented violation of the separation of powers — she contends that the President removed the Register, an official in the Legislative Branch, based on his disagreement with advice that the Register provided to Congress in support of its constitutional power to formulate laws and policies concerning copyrights; (2) the President’s removal of Perlmutter was likely unlawful; and (3) Perlmutter likely does not exercise substantial executive power, making this case markedly different from most precedents addressing the removal of government officials. Under the circumstances, the district court should have weighed all the preliminary-injunction factors. Those factors all favor granting Perlmutter's requested preliminary injunction.

Congress established the Library of Congress in 1800 as a part of the Legislative Branch. See 2 U.S.C. § 171(1); Compl., ECF No. 1 ¶ 10 n.1 (citing Library of Congress Information Bulletin (1984)). The Library “serves as the research arm of Congress and is recognized as the national library of the United States.” Frequently Asked Questions , Libr. of Cong., https://perma.cc/6Z77-ZRE4. Congress provided the President Page 4with authority to appoint the Librarian of Congress, who heads the Library, subject to the advice and consent of the Senate. See 2 U.S.C. § 136-1(a). The Librarian is appointed for a term of ten years. Id. § 136-1(b).

Housed within the Library of Congress is the U.S. Copyright Office. The Constitution vests Congress with the power to “secur[e] for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.” U.S. Const. art. I, § 8, cl. 8. Relying on that constitutional authority, Congress has protected copyrights in some form under federal law since 1790. See Act of May 31, 1790, ch. 15, 1 Stat. 124. And in 1897, Congress established the Copyright Office within the Library of Congress. History of U.S. Copyright Office , U.S. Copyright Off., https://perma.cc/BJ9R-2KTS.

The Register of Copyrights oversees the Copyright Office and administers the nation’s copyright system. The Register is appointed by the Librarian of Congress and acts under the Librarian’s general direction and supervision. See 17 U.S.C. § 701(a); Med. Imaging & Tech. All. v. Libr. of Cong. , 103 F.4th 830, 833 (D.C. Cir. 2024). She 'is the principal advisor to Congress on national and international copyright matters, testifying upon request and providing ongoing leadership and impartial expertise on copyright law and policy.” Overview , U.S. Copyright Off., https://perma.cc/6BQN-J5Z5; see also 17 U.S.C. § 701(b) (listing statutory functions of the Register). The Office also “registers copyright claims, records information about copyright ownership, provides information to the public, and assists Congress and other parts of the government on a wide range of copyright issues.” Overview , U.S. Copyright Off., supra .

Page 5By statute, the Librarian of Congress bears sole responsibility for appointing the Register. The Librarian also has sole authority to remove the Register. See Nat’l Treasury Emps. Union v. Reagan , 663 F.2d 239, 247 (D.C. Cir. 1981) (“Absent relevant legislation” “the power to remove is held by the appointing authority, and only by the appointing authority.”).

In October 2020, the Librarian of Congress, Dr. Carla D. Hayden, appointed Shira Perlmutter to serve as the Register. On May 8, 2025, the President fired Hayden. Under the regulations promulgated pursuant to 2 U.S.C. § 136 and longstanding practice, the interim Principal Deputy Librarian, Robert R. Newlen, replaced Hayden as Acting Librarian of Congress. Newlen has been an employee of the Library of Congress for more than forty years.

On May 9, 2025, Perlmutter released the AI Report — a prepublication version of a report analyzing the fair use doctrine’s application to the use of copyrighted materials in the training of generative AI models. She prepared the report pursuant to the Register’s statutory responsibility to “[c]onduct studies” and “[a]dvise Congress on national and international issues relating to copyright,” 17 U.S.C. § 701(b)(1), (4). See U.S. Copyright Off., Copyright and Artificial Intelligence Part 3: Generative AI Training (May 2025), https://perma.cc/3J9F7SQN. The AI Report concluded that some uses of copyrighted works in generative AI training were likely to qualify as “fair use,” but some uses were likely to require licensing. Compl. ¶ 19. The Copyright Office is reportedly in the process of finalizing a separate aspect of the report to Congress, which will address the topic of potential liability for infringing AI outputs.

Page 6Perlmutter alleges that the President disagreed with her on the substance of the AI Report, as evidenced by his subsequent statements. On the day after the AI Report was released, May 10, 2025, Trent Morse, Deputy Assistant to the President and Deputy Director of the White House Presidential Personnel Office, sent an email to Perlmutter on behalf of the President, stating that her 'position as the Register of Copyrights and Director at the U.S. Copyright Office is terminated effective immediately.” Compl. ¶ 20.

The President subsequently invoked the Federal Vacancies Reform Act ('FVRA'), 5 U.S.C. § 3345(a), to purportedly appoint Deputy Attorney General Todd Blanche as Acting Librarian of Congress. Blanche then purportedly appointed Justice Department official Paul Perkins as Acting Register.

Perlmutter sued the President and other officials in the district court, arguing that her termination was unlawful. First, she argued that only the Librarian of Congress — and not the President — has the authority to fire her. Second, she argued that Blanche was unlawfully appointed as Acting Librarian and therefore lacks authority to ratify the President’s actions, i.e. , to effectuate her termination.

The district court denied Perlmutter's requests for a temporary restraining order and a preliminary injunction. Perlmutter v. Blanche , No. 25-1659, 2025 WL 2159197, at *1 (D.D.C. July 30, 2025). The district court did not consider whether Perlmutter was likely to succeed on the merits of her claims; rather, the court denied Perlmutter’s motion solely by evaluating irreparable harm. See id. at *2–8. Specifically, the district court reasoned that Perlmutter's asserted loss of her “statutory right to function” was not a “genuinely extraordinary situation such that her temporary removal is irreparable harm — or at least, harm that outweighs any corresponding risk of Page 7harm to the Government.” Id. at *7. The district court relied on the Supreme Court’s recent order in Trump v. Wilcox , which states that the harm to the government “from an order allowing a removed officer to continue exercising the executive power” is generally greater than the harm to a government official who is wrongfully removed. Id. at *5 (quoting 145 S. Ct. 1415, 1415 (2025)).

Perlmutter filed an appeal and asked the district court for a stay of its order pending appeal. The district court denied her request. Perlmutter v. Blanche , No. 25-1659, 2025 WL 2409755, at *1 (D.D.C. Aug. 20, 2025).

Perlmutter then filed the instant motion for an injunction pending appeal, asking this court to 'act swiftly to enjoin Defendants from interfering with Perlmutter's service as Register during the pendency of this appeal.” Mot. at 3.

Notwithstanding Perlmutter’s purported removal, and the purported appointment of Blanche as Acting Librarian, it appears that Perlmutter is still serving in her role as Register. In support of her motion for a preliminary injunction in the district court, Perlmutter asserted that, to her knowledge, “no official at the Library of Congress has recognized Mr. Blanche as the acting Librarian of Congress,” and that she “[remains] Register of Copyrights and therefore [is] required by law to fulfill [her] above-described statutory obligations.” ECF No. 24-3 at 4–5.

An injunction pending appeal is an “exceptional remedy,” and the party seeking one on appeal from the denial of a preliminary injunction faces the “difficult task” of showing that the district court likely abused its discretion in denying Page 8preliminary relief. John Doe Co. v. CFPB , 849 F.3d 1129, 1131 (D.C. Cir. 2017) (per curiam). To obtain either a preliminary injunction or an injunction pending appeal, the movant must demonstrate (1) a likelihood of success on the merits, (2) a likelihood of irreparable harm absent injunctive relief, (3) that the balance of equities favors an injunction, and (4) that an injunction is in the public interest. See Winter v. Nat. Res. Def. Council, Inc. , 555 U.S. 7, 20 (2008). “The first two factors of the traditional standard are the most critical,” Nken v. Holder , 556 U.S. 418, 434 (2009), and the showing of likelihood of success must be “substantial,” Citizens for Resp. & Ethics in Wash. v. FEC , 904 F.3d 1014, 1018 (D.C. Cir. 2018). Where the federal government is the opposing party — as is the case here - the balance of equities and public interest factors merge. Nken , 556 U.S. at 435.

Winter “can be read to require movants to establish each preliminary injunction factor independently.' Clevinger v. Advoc. Holdings, Inc. , 134 F.4th 1230, 1235 (D.C. Cir. 2025). But in general, a 'movant's failure to show any irreparable harm is grounds for refusing to issue a preliminary injunction, even if the other three factors merit such relief.” Id. at 1236 (cleaned up). In the context of the Executive’s removal of a government employee, courts may consider “unusual actions relating to the discharge itself” and “genuinely extraordinary situation[s]” to support a finding of irreparable harm. Sampson , 415 U.S. at 92 n.68. At bottom, an injunction is an exercise of judicial discretion that turns on the circumstances of the case. Winter , 555 U.S. at 24.

In determining whether an injunction pending appeal is warranted, we must evaluate whether the district court abused its discretion, and that analysis necessarily overlaps with the issues that will be raised in Perlmutter’s appeal of the preliminary-injunction order. See John Doe , 849 F.3d at 1131.

Page 9We review the district court’s “legal conclusions as to each of the four [preliminary-injunction] factors de novo , and its weighing of them for abuse of discretion.” League of Women Voters of U.S. v. Newby , 838 F.3d 1, 6 (D.C. Cir. 2016).

As previously noted, the district court's order denying injunctive relief rested solely on its determination that Perlmutter had failed to show that she would suffer irreparable harm if removed during the pendency of further proceedings. The district court therefore performed no weighing of the other preliminary-injunction factors. Although courts may generally rely solely on a movant’s failure to show irreparable harm to deny injunctive relief, the district court nonetheless erred in this instance. The district court’s order leaned heavily on the Supreme Court's statement in Wilcox that 'the Government faces greater risk of harm from an order allowing a removed officer to continue exercising the executive power than a wrongfully removed officer faces from being unable to perform her statutory duty” - but Wilcox addressed circumstances that were different in important respects. Perlmutter , 2025 WL 2159197, at *5 (quoting 145 S. Ct. at 1415). The district court also failed to appropriately follow the Supreme Court’s guidance in Sampson that 'unusual actions relating to the discharge itself” and “genuinely extraordinary situation[s]” can support a finding of irreparable harm. 415 U.S. at 92 n.68. In our view, the district court abused its discretion by neglecting to adequately consider the specific circumstances of this case.

Perlmutter is employed by the Legislative Branch as Register, a role that requires her to provide advice to Congress about copyright issues. She alleges that the President sought to remove her from her job because he disapproved of the Page 10advice that she gave to Congress in the AI Report. The Executive's alleged blatant interference with the work of a Legislative Branch official, as she performs statutorily authorized duties to advise Congress, strikes us as a violation of the separation of powers that is significantly different in kind and in degree from the cases that have come before. This case is also distinguishable from Wilcox because of the diminished amount of executive power that is at stake: The Register likely does not exercise substantial executive power because the position is housed within the Legislative Branch; its primary responsibility is advising Congress on matters of copyright law; and the President has no statutory removal authority over the Register at all. And finally, it is significant that Perlmutter’s removal was likely unlawful because the President has no direct authority to fire her, and his installment of an Acting Librarian of Congress was likely ineffective.

On de novo review of the district court's finding of no irreparable harm, we reach the opposite conclusion: Based on “unusual actions relating to the discharge itself” and “genuinely extraordinary” circumstances, Sampson , 415 U.S. at 92 n.68, Perlmutter has demonstrated irreparable harm. The other preliminary-injunction factors — Perlmutter’s likelihood of success on the merits, the balance of equities, and the public interest — also favor issuing an injunction pending appeal.

Perlmutter’s purported removal was likely unlawful. The Librarian of Congress — not the President — is authorized by statute to appoint the Register.¹⁷ U.S.C. § 701(a). And because the governing statute is silent regarding the question of removal, the Librarian — not the President — has the power to remove Perlmutter. See Nat’l Treasury Emps. Union , 663 F.2d at 247 ('Absent relevant legislation' 'the power to Page 11remove is held by the appointing authority, and only by the appointing authority.'); see also Aviel v. Gor , No. 25-5105, 2025 WL 1600446, at *1 (D.C. Cir. June 5, 2025) (Katsas, J., concurring) (citing Free Enter. Fund v. PCAOB , 561 U.S. 477, 493, 509 (2010)). The government does not argue otherwise in its opposition. Thus, the dispute on the merits focuses on the appointment of the Acting Librarian of Congress.¹

Blanche's purported appointment to serve as Acting Librarian of Congress was likely unlawful because any Librarian appointee must be confirmed by the Senate, 2 U.S.C. § 136-1(a), but here, Senate approval is lacking. As a result, Blanche’s purported appointment of Perkins to serve as Acting Register also was likely unlawful. See 17 U.S.C. § 701(a).

The FVRA is likely an unavailing workaround for the government. That statute gives the President authority to appoint another Senate-confirmed official as the acting principal officer of an “Executive agency,” subject to certain limitations. See 5 U.S.C. § 3345. The FVRA states that it is 'the exclusive means for temporarily authorizing an acting [principal] official.' Id. § 3347(a). And an action taken by any Page 12person who was not properly appointed “shall have no force or effect.' Id. § 3348(d)(1). For purposes of the FVRA, the phrase “Executive agency” means (1) “an Executive department,' (2) 'a Government corporation,' or (3) 'an independent establishment.' Id. § 105.

The plain language of the statute indicates that the Library of Congress is not an “Executive agency” for purposes of the FVRA. First, Title 5 specifically enumerates the “Executive departments” and does not include the Library. See 5 U.S.C. § 101. Second, the Library is not a corporation owned by the government, so it does not fit the statutory definition of “Government corporation.” See id. § 103. Third, the Library is likely not an “independent establishment” because it is not 'an establishment in the executive branch.' Id. § 104. In determining whether an entity qualifies as an 'independent establishment,” we have previously looked to statutes where Congress has treated the term “independent establishment” as distinct from the entity in question. See Haddon v. Walters , 43 F.3d 1488, 1490 (D.C. Cir. 1995) (determining that the “Executive residence” is not an “independent establishment” by considering Congress’s separate use of both terms in the U.S. Code). Such is the case here, where the U.S. Code refers to the “Library of Congress” and “independent establishment” as distinct entities.⁵ U.S.C § 4101 (defining 'independent establishment' and the 'Library of Congress' as separate agencies).

We also note that throughout Title 5, in which the FVRA is codified, Congress commonly refers to the 'Library of Congress” as separate and distinct from an “Executive agency.” See 5 U.S.C. §§ 3102(a)(1) (listing 'the Library of Congress' separately from the term “Executive agency”), 3401(1) (same), 4501(1) (same), 5102(a)(1) (same), 5521(1) (same), 5541(1) (same), 5584(g) (same), 5595(a)(1) (same), 5921(2) (same),Page 13 5948(g)(2) (same), 6121(1) (same), 7103(a)(3) (same), 13101 (defining the 'Library Congress' as a component of the “legislative branch,” distinct from the “executive branch” and “Executive agency”), 4101(1) (listing the “Library of Congress” separately from “Executive department”); see also 2 U.S.C. § 181(b)(1) (defining 'offices and agencies of the legislative branch' as including the Library of Congress); Davis v. Billington , 681 F.3d 377, 386 (D.C. Cir. 2012) (analyzing the Civil Service Reform Act and concluding that the statute's use of the term ''Executive agency' . . . plainly does not contain the Library of Congress within the meaning of the statute' (citing 5 U.S.C. § 7103(a)(3))); Haddon , 43 F.3d at 1490 (similar). That lends further support to our conclusion.

We next turn to whether Perlmutter has shown that she is likely to suffer irreparable harm if removed during the pendency of her lawsuit. We hold that she has.

The mere loss of government employment is normally not enough to show irreparable harm during the pendency of litigation about the employee’s removal because the plaintiff usually can be made whole through the issuance of back pay. See Sampson , 415 U.S. at 91 (Congress contemplated that the Back Pay Act would be “the usual, if not the exclusive, remedy for wrongful discharge.'). In Sampson , the Supreme Court held that a probationary employee, who was terminated from her job with the General Services Administration, failed to make a showing of irreparable injury based on her claims of lost income and reputational damage. Id. at 89. The Court observed that the administrative scheme governing civil servants would be disrupted by temporary relief; that 'the Government has traditionally been granted the widest latitude in the dispatch of its own internal affairs”; and that courts of Page 14equity generally are 'unwilling' to enforce contracts for personal service. Id. at 83 (cleaned up). Under the circumstances, the Court determined that a discharged government employee must make a showing of irreparable injury “sufficient in kind and degree to override these factors,” which cut 'against the general availability of preliminary injunctions in Government personnel cases.' Id. at 84. Notably, however, the Court recognized that “cases may arise in which the circumstances surrounding an employee’s discharge, together with the resultant effect on the employee, may so far depart from the normal situation that irreparable injury might be found.” Id. at 92 n.68. Indeed, 'genuinely extraordinary situation[s],' such as those involving 'any unusual actions relating to the discharge itself,” might support a finding of irreparable harm in cases that are not 'routine.' Id.

Perlmutter's appointment as Register of Copyrights is very different from the government employment at issue in Sampson . The plaintiff in Sampson was a probationary employee in her first year on the job. 415 U.S. at 63–64. By contrast, Perlmutter is a government official engaged in “lead[ing] and direct[ing] the important work of the Copyright Office at a critical juncture.” Mot. at 19. In the unique role of Register of Copyrights, Perlmutter has the opportunity to influence Congress on copyright matters of national importance, such as the development of generative AI. She administers the Copyright Act, which requires the examination of copyright applications, the issuance of copyright registrations, the maintenance of copyright deposits, and the recordation of transfers of copyright ownership.¹⁷ U.S.C. §§ 205, 410–11, 705. She has rulemaking authority that is subject to review by the Librarian of Congress. See id. § 702. And she may set copyright fees, under the supervision of Congress. See id. § 708(b)(5) (The Register must 'prepare a proposed fee schedule and submit the schedule with the accompanying Page 15economic analysis to the Congress.”). Her statutory right to function as the Register of Copyrights is thus far weightier than the mere loss of income implicated in Sampson . See Wilcox , 145 S. Ct. at 1415 (recognizing that a “wrongfully removed officer” faces “risk of harm” from “being unable to perform her statutory duty”). The uniqueness of her role and the opportunities it gives her 'transcend[] the loss of income or embarrassment involved in the typical employment action.' Mot. at 19.

To be sure, Perlmutter’s inability to perform her statutory functions likely does not, in itself, constitute irreparable harm, even if the harm is very significant. See Dellinger v. Bessent , No. 25-5052, 2025 WL 887518, at *4 (D.C. Cir. Mar. 10, 2025) (per curiam) (recognizing that the alleged deprivation of “the statutory right to function” is not necessarily irreparable). But here, there is more.

Certain “unusual actions relating to the discharge itself” and 'genuinely extraordinary' circumstances also support a finding of irreparable harm. Sampson , 415 U.S. at 92 n.68. Unlike the plaintiff in Sampson , who claimed that her employer had violated civil-service regulations, Perlmutter alleges that the President of the United States unlawfully removed her in a manner that violates the separation of powers. Perlmutter has a statutory mandate to serve as the principal advisor to Congress on issues of copyright, 17 U.S.C. §§ 701, 702, and she plays a critical supporting role in Congress’s constitutional mission to establish a system of copyright laws, U.S. Const. art. I, § 8, cl. 8. The President purported to remove Perlmutter because he allegedly disagreed with her conclusions in the AI Report, which was prepared to assist Congress in the exercise of its constitutional authority to make law and policy related to copyrights. The President then purported to install Executive Branch officials — Blanche and Perkins — as Acting Librarian Page 16of Congress and Acting Register of Copyrights. If those facts are proven true, that would be a grave intrusion by the President into the constitutional powers of a coordinate branch of government. Moreover, as already explained, Perlmutter’s removal was likely illegal because only a lawfully appointed and Senate-confirmed Librarian can remove the Register. The President’s attempt to reach into the Legislative Branch to fire an official that he has no statutory authority to either appoint or remove, and to impede Congress's ability to carry out an enumerated constitutional duty, presents a “genuinely extraordinary situation,” Sampson , 415 U.S. at 92 n.68, that threatens irreparable harm to the constitutional structure of our government. The President’s purported removal of the Legislative Branch’s chief advisor on copyright matters, based on the advice that she provided to Congress, is akin to the President trying to fire a federal judge’s law clerk.

The district court failed to recognize the 'extraordinary situation' presented by this case and erred in mechanically applying the Supreme Court's reasoning in Wilcox . Wilcox involved the constitutionality of for-cause removal protections for members of the National Labor Relations Board and the Merit Systems Protection Board, agencies that are housed within the Executive Branch. See 145 S. Ct. at 1415. That case and others like it implicate the President’s Article II authority as the head of the Executive Branch, and his statutory power to exercise at least some control over the involved officials, such as by appointing them (with the advice and consent of the Senate) and removing them (for cause). See id. ; see also Trump v. Boyle , 145 S. Ct. 2653, 2654 (2025); Dellinger , 2025 WL 887518, at *3. In Wilcox , where the Supreme Court held that the government was likely to succeed on the merits of its claim that the President was entitled to exercise at-will removal authority, it was more difficult for the ousted officials to demonstrate irreparable injury. There, under the Court's Page 17analysis, the 'actions relating to the discharge[s]' suggested that the officials had no entitlement to keep their jobs, and so their removals were not 'extraordinary.' Sampson , 415 U.S. at 92 n.68; see also Wilcox , 145 S. Ct. at 1415 (The “Government faces greater risk of harm from an order allowing a removed officer to continue exercising the executive power' at an agency that likely exercises “considerable executive power,” than does a “wrongfully removed officer.”); Boyle , 145 S. Ct. at 2654 (same) .

The case most similar to the one before us is Aviel v. Gor , where we ruled in favor of the removed official. See 2025 WL 1600446, at *1 (Katsas, J., concurring). There, we declined to stay the district court’s preliminary injunction enjoining various government officials from removing Aviel from her position as Chief Executive Officer of the Inter-American Foundation, a government grant-making corporation. See id. at *1–2. In explaining the court’s ruling, Judge Katsas (joined by Judge Pillard) noted that the government, which had moved for the stay, did not demonstrate a likelihood of success on the merits of its claim that Aviel had been lawfully removed. Id. at *1. He explained that, similar to this case, the President likely had no statutory authority to appoint or remove Aviel, and his appointment of a Board member who purported to ratify her removal also was likely unlawful under governing statutes. Id . at *1–2. Regarding irreparable harm, the district court had determined that Aviel would be irreparably harmed by the loss of her “right to function” and because “the very survival of her organization [was] at stake.” Aviel v. Gor , 780 F. Supp. 3d 1, 14 (D.D.C. 2025). By declining to stay the preliminary injunction, we implicitly agreed with the district court that Aviel would be irreparably harmed absent the preliminary injunction. See Aviel , 2025 WL 1600446, at *1–2 (Katsas, J., concurring); see also Nken , 556 U.S. at 426 (requiring courts to examine whether a stay will substantially Page 18injure the other party); Clevinger , 134 F.4th at 1236 (“Even under the sliding-scale approach, a movant’s failure to show any irreparable harm is grounds for refusing to issue a preliminary injunction, even if the other three factors merit such relief.” (cleaned up)). Aviel supports our conclusion that Perlmutter has made the requisite showing of irreparable harm where she, like Aviel, has alleged a loss of her 'right to function” plus “genuinely extraordinary” circumstances.

In sum, “unusual actions relating to the discharge itself” support a finding of irreparable harm to Perlmutter absent an injunction. Perlmutter can likely establish that she was unlawfully removed from her post as Register of Copyrights, and that her removal was motivated by the President's disapproval of her work in service of Congress — work that was related to legislative, not executive, functions. Moreover, she was purportedly replaced by an Executive Branch official. That alleged violation of the separation of powers is irreparably harmful to both Perlmutter and to our system of government. In a system of checked and balanced power, the Executive has no authority to punish a Legislative Branch official for the advice that she provides to Congress. Moreover, if Perlmutter is temporarily barred from “[c]onduct[ing] studies” and '[a]dvis[ing] Congress on national and international issues relating to copyright,” 17 U.S.C. § 701(b)(1), (4), no amount of back pay will compensate her or Congress for her interim inability to support Congress’s consideration of copyright law and policy during a critical time. This presents a “genuinely extraordinary situation,” such that she has made the requisite showing of irreparable harm.

Because the “first two factors of the traditional standard are the most critical,' Nken , 556 U.S. at 434, Perlmutter Page 19advances to this final, combined factor, in a strong position. In our view, the balance of equities and the public interest also weigh in favor of Perlmutter remaining in her job.

In cases involving the removal of government officials, the Supreme Court has balanced the parties' competing assertions of harm and ruled in the government’s favor where the government was likely to show that the agencies in question 'exercise considerable executive power ,” and that the removed executive official sought to “ continue exercising the executive power .” Wilcox , 145 S. Ct. at 1415 (emphases added); see also Boyle , 145 S. Ct. at 2654 ('[T]he Consumer Product Safety Commission exercises executive power in a similar manner as the National Labor Relations Board.' (emphasis added)). Reinstating an already-ousted official under such circumstances would be 'obviously disruptive' and would likely inflict irreparable injury on the government because it would interfere with the President's constitutional power to supervise the Executive Branch. Sampson , 415 U.S. at 83; see also Dellinger , 2025 WL 887518, at *3. By contrast, the injunction requested by Perlmutter would not require the President to work with a removed principal officer at an Executive Branch agency; and it would not interfere with the President’s constitutional prerogative to supervise the Executive Branch. Because Perlmutter leads an agency that is housed in the Legislative Branch and her primary role is to advise Congress, Perlmutter's situation differs significantly from the Executive Branch officials whose removals have been repeatedly upheld. And because she continues to serve as Register at the present time, ruling in her favor would not disrupt the work of the U.S. Copyright Office. To the contrary, it is her removal that would be disruptive.

Page 20Notably, the Register likely does not exercise considerable or substantial executive power.² The Register serves Congress, executive agencies, and the Judiciary by providing advice, information, and assistance on national and international issues relating to copyright.¹⁷ U.S.C. § 701(b)(1)–(3). She conducts 'studies and programs regarding copyright,' and performs 'other functions as Congress may direct.' Id. § 701(b)(4), (5). In so doing, the Register primarily works for Congress, similar to the Congressional Research Service, the powers of which “are exercised primarily for legislative purposes.” Intercollegiate Broad. Sys. , 684 F.3d at 1341; see also Bowsher v. Synar , 478 U.S. 714, 746 n.11 (1986) (Stevens, J., concurring) (explaining that the Library’s Congressional Research Service is a “congressional agent” for purposes of the nondelegation doctrine). To the extent that any of the Register's duties might be characterized as 'executive' in nature, they likely do not involve the exercise of “substantial” executive power. Indeed, Congress chose to house the Copyright Office in the Legislative Branch, to subject the Register to close supervision by both the Librarian of Congress Page 21and Congress itself, and to assign prominent Congress-facing duties to the Register. Those factors set the Register apart from traditional Executive Branch officials and suggest that the Register likely does not wield “substantial” executive power.

The public interest also favors granting Perlmutter's requested relief. There is no public interest in implementing Perlmutter's likely illegal removal . See League of Women Voters of U.S. , 838 F.3d at 13 ('There is a substantial public interest in having” the government “abide by the federal laws.” (cleaned up)). Moreover, requiring that Perlmutter be removed while this litigation proceeds would deprive Congress of her valuable services as Register while it considers important issues such as the intersection of copyright law and the development of generative AI. The public has a profound interest in the Register’s continued work.

Our dissenting colleague does not dispute that Perlmutter is likely to succeed on the merits of her lawsuit, that Perlmutter would suffer irreparable harm absent an injunction pending appeal, or that those two factors are the most critical in deciding whether to grant the requested injunction. Instead, our colleague would deny the requested relief based solely on his assessment of the balance of equities. In his view, the equities in this case are identical to those that were considered in Wilcox and Boyle . But, as we have explained, this case is different.

On one side of the scale, Perlmutter asserts her interest in performing her statutory functions at a critical time, as well as the structural harm to our government from an unprecedented violation of the separation of powers. The constitutional violation alleged here is different in kind and in degree from that discussed in Wilcox and Boyle because Perlmutter is a Legislative Branch official whom the President purportedly Page 22fired in retaliation for advice that she gave Congress; and the President has no statutory authority to appoint or remove the Register of Copyrights. On the other side of the scale, the President asserts an interest in removing Perlmutter that is far weaker than in Wilcox and Boyle because Perlmutter is closely supervised by the Librarian and by Congress and therefore does not exercise “considerable” or “substantial” executive power. See supra at 13-14, 18-20, 19 n.2. Because our dissenting colleague does not engage with the particular facts of the case before us, his analysis is flawed.

In sum, all of the preliminary-injunction factors weigh in favor of granting an injunction pending appeal. Perlmutter has shown a likelihood of success on the merits of her claim that the President's attempt to remove her from her post was unlawful because she may be discharged only by a Senateconfirmed Librarian of Congress. She also has made the requisite showing of irreparable harm based on the President’s alleged violation of the separation of powers, which deprives the Legislative Branch and Perlmutter of the opportunity for Perlmutter to provide valuable advice to Congress during a critical time. And Perlmutter has shown that the balance of equities and the public interest weigh in her favor because she primarily serves Congress and likely does not wield substantial executive power, which greatly diminish the President’s interest in her removal. For the foregoing reasons, we grant Perlmutter’s requested injunction pending appeal.

Page 23W ALKER , Circuit Judge , dissenting:

The Register of Copyrights exercises “executive” power.¹ And “the Government faces greater risk of harm from an order allowing a removed officer to continue exercising the executive power than a wrongfully removed officer faces from being unable to perform her statutory duty.” 2 So the district court did not permit the Register of Copyrights to remain in her post while she challenges the legality of her removal, and neither should we.

* * *

The Register of Copyrights exercises executive power in a host of ways. From within the Library of Congress, she “administers the Copyright Act, which requires the examination of copyright applications, the issuance of copyright registrations, the maintenance of copyright deposits, and the recordation of transfers of copyright ownership.” 3 In addition, she “has rulemaking authority that is subject to review by the Librarian of Congress.” 4 And she 'has some oversight responsibilities regarding Copyright Royalty Judges,' who have “the power ‘to promulgate copyright regulations, to apply the statute to affected parties, and to set rates and terms case by case,' which are functions 'generally associated in modern Page 24times with executive agencies rather than legislators.’” 5 These are among the reasons we have 'recently recognized the important executive power exercised by the Library, suggesting that whatever the Library's historical association with Congress, it is squarely a component of the Executive Branch in its role as a copyright regulator .” 6

Recently, repeatedly, and unequivocally, the Supreme Court has stayed lower-court injunctions that barred the President from removing officers exercising executive power. Trump v. Wilcox reasoned that “the Government faces greater risk of harm from an order allowing a removed officer to continue exercising the executive power than a wrongfully removed officer faces from being unable to perform her statutory duty.'⁷ And Trump v. Boyle applied the same reasoning with the same language to reach the same result.⁸

Applying those precedents, the district court denied a request for a preliminary injunction to reinstate Register of Copyrights Shira Perlmutter after President Donald Trump fired her. Perlmutter then asked this court for an injunction pending appeal.

Page 25My colleagues grant the injunction, holding that the district court likely “abused its discretion” 9 by 'mechanically applying the Supreme Court’s reasoning in Wilcox .” 10 Instead, they say the district court should have considered the “specific circumstances of this case.” 11 In their view, those circumstances are (1) the relationship between Congress and the Register of Copyrights; (2) the amount of executive power at stake; and (3) the suit’s merits.¹²

I respectfully dissent.

First, whether or not the Register of Copyrights is best labeled 'a Legislative Branch official,'¹³ the Register of Copyrights is housed within the Library of Congress, which “is squarely a component of the Executive Branch in its role as a copyright regulator.” 14

Second, whether or not the Register of Copyrights exercises less executive power than do some other executive officers, 15 Wilcox and Boyle cover any officer 'exercising the executive power.” 16

Page 26And third, whether or not “Perlmutter’s removal was likely unlawful,” 17 Wilcox and Boyle referred to 'a wrongfully removed officer” when they said that “the Government faces greater risk of harm from an order allowing a removed officer to continue exercising the executive power than a wrongfully removed officer faces from being unable to perform her statutory duty.” 18

* * *

I do not doubt that my colleagues are attempting in good faith to interpret and apply Wilcox and Boyle . 19 But today they repeat the mistake that Wilcox and Boyle twice corrected.²⁰ We must apply those precedents even if “Perlmutter alleges that the President of the United States unlawfully removed her in a manner that violates the separation of powers.” 21

Gwynne Wilcox alleged the same thing.²² So did Cathy Harris.²³ And so did Mary Boyle. 24

24 Cf. Boyle , 145 S. Ct. at 2654 (staying Boyle's injunction);

Order, Trump v. Slaughter see also , No. 25A264, S. Ct. (Sept. 8, 2025).