League of Women Voters of Massachusetts v. Trump — First Circuit refused to pause injunction against new ballot-mail rule

Case
League of Women Voters of Massachusetts v. Trump; State of California v. U.S. Postal Service
Court
U.S. Court of Appeals for the First Circuit
Judge
Gelpí; Rikelman; Aframe
Date Decided
September 10, 2026
Docket No.
26-2029; 26-2030; 26-2031; 26-2032
Topics
Election Law; Mail Voting; Preliminary Injunctions; Organizational Standing
Source
Read the full opinion

Background

Shortly before states were scheduled to begin mailing ballots for the November 3, 2026 federal election, the U.S. Postal Service issued a rule governing federal-election ballot mail. Among other requirements, the rule conditioned delivery on matching voter-specific Intelligent Mail barcodes, required USPS approval of ballot-envelope designs, and contemplated uploads to a USPS portal that was not yet operational.

States and voting-related organizations challenged the rule. The district court preliminarily enjoined portions of it after finding, among other things, that the challengers were likely to succeed, that immediate implementation could disenfranchise millions of voters, and that the organizational plaintiffs had standing. Federal appellants and intervenor states sought a stay pending appeal, and USPS separately requested an administrative stay.

The Court’s Holding

The First Circuit denied the stay motions. At this preliminary stage, the panel agreed that appellants had not made the required strong showing that the district court likely erred in treating the rule as an unauthorized regulation of the manner of congressional elections. The panel reasoned that the rule specifically targeted election mail, imposed duties affecting states’ election administration, and relied on election-integrity objectives. It was unpersuaded that USPS’s general statutory powers likely supplied congressional authorization for those measures.

The remaining stay factors also favored leaving the injunction in place. The unrebutted record indicated that immediate implementation could cause administrative chaos and widespread disenfranchisement, while appellants had not shown comparable irreparable injury or evidence of relevant past or impending fraud. On the injunction’s scope, the panel found no likely error in the district court’s organizational-standing determination because the rule allegedly interfered with core voter-registration, translation, education, and counseling services—not merely advocacy against the rule. USPS’s request for an administrative stay was denied as moot.

Key Takeaways

  • The ruling denied emergency stay relief; it did not finally resolve the rule’s constitutionality, statutory validity, or the organizational plaintiffs’ standing.
  • The panel concluded that appellants had not shown a likelihood of overturning the preliminary injunction under the Elections Clause, given the rule’s direct effects on election administration and the absence of specific congressional authorization identified by appellants.
  • The injunction does not prevent voluntary state compliance or USPS preparations for elections after November 2026.

Why It Matters

The order keeps the challenged portions of USPS’s ballot-mail rule from taking effect for the imminent November 2026 election, preserving existing mail-voting procedures while the litigation continues. Its practical focus was the substantial risk that states, election organizations, USPS, and voters could not adapt to the new requirements in time.

The decision also illustrates the limited nature of appellate review at the stay stage: the panel assessed whether appellants had justified suspending preliminary relief, without issuing a final merits judgment.

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