League of Women Voters v. U.S. Department of Homeland Security

District Court, District of Columbia·Decided July 8, 2026·No. Civil Action No. 2025-3501·Published

Opinion

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA

LEAGUE OF WOMEN VOTERS, et al.,

Plaintiffs,

Civil Action No. 25 - 3501 (SLS)

v.

Judge Sparkle L. Sooknanan UNITED STATES DEPARTMENT OF HOMELAND SECURITY, et al.,

Defendants.

MEMORANDUM OPINION

This case is about the unlawful creation of a centralized federal database containing the private information of United States citizens. On June 22, 2026, this Court set aside (1) the establishment of the database, a modified version of the Systematic Alien Verification for Entitlements (SAVE) system, a system of records maintained by the Department of Homeland Security (DHS) to verify citizenship and immigration status; and (2) two System of Records Notices (SORNs) for the modified SAVE, which authorized the establishment, revisions, and disclosures from the DHS system of records and from the Social Security Administration’s (SSA) central file used to operate the modified SAVE. The Court determined that the modified SAVE system and its respective SORNs violated the Social Security Act, the Privacy Act, and the Administrative Procedure Act (i.e., Chapter 5 and 7 of Title 5). See ECF Nos. 111, 112. On June 25, 2026, the Federal Defendants appealed that decision, ECF No. 113, and they now move to stay the Court’s order pending appeal, Mot., ECF No. 116-1. For the reasons explained below, the Court denies the Federal Defendants’ motion.

LEGAL STANDARD

“A stay pending appeal is an extraordinary remedy.” M.M.V. v. Barr, 459 F. Supp. 3d 1, 4 (D.D.C. 2020) (citing Cuomo v. U.S. Nuclear Regul. Comm’n, 772 F.2d 972, 978 (D.C. Cir. 1985)). “It is ‘an intrusion into the ordinary processes of administration and judicial review and accordingly is not a matter of right.’” Id. (quoting Nken v. Holder, 556 U.S. 418, 427 (2009)). “It is instead an exercise of judicial discretion, and [t]he propriety of its issue is dependent upon the circumstances of the particular case.” Nken, 556 U.S. at 433 (cleaned up). “The party requesting a stay bears the burden of showing that the circumstances justify an exercise of that discretion.” Id. at 433–34.

Courts must consider four factors in connection with a stay motion: “(1) whether the stay applicant has made a strong showing that he is likely to succeed on the merits; (2) whether the applicant will be irreparably injured absent a stay; (3) whether issuance of the stay will substantially injure the other parties interested in the proceeding; and (4) where the public interest lies.” Nken, 556 U.S. at 434 (quoting Hilton v. Braunskill, 481 U.S. 770, 776 (1987)). For the first factor, the D.C. Circuit has said that the chance of success on the merits must be “substantial.” Wash. Metro. Area Transit Comm’n v. Holiday Tours, Inc., 559 F.2d 841, 843 (D.C. Cir. 1977). Failure to satisfy this standard is “an arguably fatal flaw for a stay application.” Citizens for Resp. & Ethics in Wash. v. FEC, 904 F.3d 1014, 1017–19 (D.C. Cir. 2018) (per curiam). For the second factor, “[w]here there is a low likelihood of success on [the] merits, a movant must show a proportionally greater irreparable injury[.]” M.M.V., 459 F. Supp. 3d at 4 (citing Cuomo, 772 F.2d at 974). And the final two factors “merge when the Government” is a party. Id. (quoting Nken, 556 U.S. at 435).

DISCUSSION

The Federal Defendants fall well short of satisfying the high burden needed for a stay pending appeal. The Court is not convinced that they are likely to succeed on the merits, that they will be irreparably injured absent a stay, or that the balance of equities favors a stay.1 A. Likelihood of Success on the Merits As explained at length in the Court’s Memorandum Opinion, League of Women Voters v.

DHS, __ F. Supp. 3d.__, No. 25-cv-3501, 2026 WL 1784297 (D.D.C. June 22, 2026), ECF No. 111, the Federal Defendants cannot show a substantial likelihood of success on the merits. The Court’s Memorandum Opinion lays out its reasoning on the merits. But in urging the Court to grant the extraordinary remedy of a stay, the Federal Defendants do two things that the Court will address here. Most egregiously, they make arguments that they did not advance in prior briefing, including arguments that the Court found had been conceded in its Memorandum Opinion. See, e.g., League of Women Voters, 2026 WL 1784297, at *20 (“[T]he Defendants have conceded . . . that the Social Security Act forbids disclosure of SSA data to DHS or in responses to SAVE users.”). The Federal Defendants certainly know that a stay motion is not an avenue to raise new arguments that they chose not to advance earlier. Such an approach would cause manifest injustice to the Parties and disrupt the orderly judicial resolution of the disputes before the Court. The Federal Defendants do not stop there. In seeking a stay, they mischaracterize the Court’s Memorandum Opinion, accusing it of stepping into the shoes of Congress and inventing new

1 The Federal Defendants waited nine days to move for a stay after this Court issued its Memorandum Opinion. The Court nonetheless moved expeditiously to set a briefing schedule on their stay motion to close in roughly six days (which included a federal holiday and weekend). Yet hours after the Federal Defendants filed their reply brief, they proceeded to give this Court roughly a day and a half to decide their motion—promising to bypass this Court and go to the D.C. Circuit then. See Notice re Timing, ECF No. 121.

statutory requirements under the Privacy Act. The Court did no such thing. Indeed, according to the administrative record, DHS itself recognized that the modified SAVE was not in compliance with the Privacy Act. League of Women Voters, 2026 WL 1784297, at *6. In the end, the Federal Defendants cannot show a “substantial” likelihood of success on the merits, which is “an arguably fatal flaw” for their stay application. Citizens for Resp. & Ethics in Wash., 904 F.3d at 1017–19.

1. Forfeited Arguments “[A] motion to stay should not be used to relitigate matters, submit new evidence, or ‘raise arguments which could, and should, have been made before the judgment issued.’” ODonnell v. Harris Cnty., 260 F. Supp. 3d 810, 815 (S.D. Tex. 2017) (quoting Rosenzweig v. Azurix Corp., 332 F.3d 854, 863–64 (5th Cir. 2003)) (citing 11 Charles A Wright & Arthur R. Miller, Federal Practice and Procedure § 2810.1 (3d ed. 2012)).

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