← All Cases
2025 Term · 24-1260

Watson v. Republican National Committee

Whether Mississippi's law requiring absentee ballots to be received by Election Day — rather than merely postmarked by Election Day — violates federal law, specifically the Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA) or the National Voter Registration Act (NVRA).

Argued March 23, 2026Official Transcript ↗

Oral Argument Recording

Via Spotify ↗

Background & Facts

Mississippi law requires that absentee ballots be received by election officials no later than Election Day in order to be counted. In practice, this means that ballots postmarked before or on Election Day but arriving afterward are rejected. Federal law — specifically the Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA), which protects the voting rights of military personnel and Americans living abroad — requires states to accept and count ballots from covered voters that are timely submitted. The Republican National Committee and other plaintiffs sued Mississippi Secretary of State Michael Watson, arguing that the state's receipt deadline unlawfully prevented valid UOCAVA ballots from being counted and violated federal statutes protecting absentee voters.

The United States District Court sided with the plaintiffs, and the Fifth Circuit Court of Appeals affirmed, holding that Mississippi's strict Election Day receipt deadline could not be applied to ballots protected under UOCAVA because it conflicted with federal law. The Fifth Circuit reasoned that federal law preempts state deadlines that effectively disenfranchise military and overseas voters whose ballots were sent on time but arrived late due to mail delays. The court's October 2024 decision prompted Mississippi's Secretary of State to seek Supreme Court review, which was granted in November 2025.

Why This Case Matters

This case could have major implications for how states administer elections, particularly the balance of power between state election laws and federal statutes protecting military and overseas voters. If the Supreme Court sides with Mississippi, states would have broader authority to enforce strict receipt deadlines, potentially resulting in more ballots from military and overseas citizens being rejected. Conversely, a ruling for the respondents would reinforce federal protections requiring states to accommodate late-arriving ballots from UOCAVA-covered voters, affecting election administration in many states with similar laws.

Beyond UOCAVA, the case touches on broader questions about federal preemption of state election laws and the extent to which Congress can override state deadlines in the name of protecting voting rights. With military and overseas voters casting tens of thousands of ballots in close elections, the Court's decision could prove decisive in future elections and will shape the legal landscape for absentee voting nationwide.

The Arguments

Michael Watson, Mississippi Secretary of Statepetitioner

Mississippi's Election Day receipt deadline for absentee ballots is a valid, neutral state election administration rule that federal law does not preempt. UOCAVA guarantees military and overseas voters the opportunity to vote, but does not override a state's reasonable deadline requiring ballots to be received — not merely mailed — by Election Day. States have broad authority under the Elections Clause and the Constitution to set the rules for when ballots must be received.

  • UOCAVA requires states to allow covered voters to submit ballots, but does not mandate that states count ballots arriving after Election Day.
  • States have historically held broad authority to set election administration rules, including receipt deadlines, under the Elections Clause of the Constitution.
  • Requiring states to count ballots arriving after Election Day creates administrative chaos and undermines election finality, as results cannot be certified until an indefinite post-election window closes.
  • The Fifth Circuit's ruling improperly used federal statute to override a neutral, generally applicable state election rule, setting a dangerous precedent for federal intrusion into state election administration.
Republican National Committee, et al.respondent

Mississippi's strict Election Day receipt deadline violates UOCAVA because it effectively prevents military and overseas voters — who face unique mailing delays outside their control — from having their ballots counted even when timely submitted. Federal law preempts the state deadline to the extent it conflicts with UOCAVA's mandate to protect the voting rights of covered voters.

  • UOCAVA was enacted precisely to address the unique challenges faced by military and overseas voters, including mail delays that are often beyond their control.
  • Applying a rigid Election Day receipt deadline to UOCAVA voters conflicts with the statute's purpose and its requirement that states provide meaningful absentee voting opportunities.
  • The Supremacy Clause requires that the state receipt deadline yield to the contrary federal mandate protecting military and overseas voters.
  • Invalidating the receipt deadline as applied to UOCAVA voters is a narrow remedy that preserves state authority in all other respects while vindicating critical federal rights.

Precedent Cases Cited

Uniformed and Overseas Citizens Absentee Voting Act (statutory construction cases)

52 U.S.C. § 20301 et seq.

UOCAVA is the central federal statute at issue, requiring states to provide absentee voting opportunities to military and overseas citizens and forming the basis for the respondents' preemption argument.

multiple

Purcell v. Gonzalez

549 U.S. 1

Petitioner invokes this case for the principle that federal courts should be cautious about ordering changes to state election laws close to an election, supporting deference to state election administration rules.

petitioner

Arizona v. Inter Tribal Council of Arizona, Inc.

570 U.S. 1

This case addressed the scope of federal preemption of state voter registration requirements under the National Voter Registration Act and the Elections Clause, which is directly relevant to the preemption analysis here.

multiple

Brnovich v. Democratic National Committee

594 U.S. 647

Both sides cite this case regarding the standards for evaluating state voting restrictions under federal law and the scope of states' authority to set election administration rules.

multiple

Foster v. Love

522 U.S. 67

This case established that federal law governs the timing of federal elections and that state election rules that conflict with federal statutes setting Election Day are preempted.

respondent

Smiley v. Holm

285 U.S. 355

This case is cited for the scope of state authority under the Elections Clause of the Constitution, relevant to the petitioner's argument that states have broad power to administer federal elections.

petitioner

Legal Terminology

Analysis & Opinions

SCOTUSblogAmy Howe2026-03-23
Court appears ready to overturn state law allowing for late-arriving mail-in ballots

The Supreme Court heard oral arguments on a challenge to a Mississippi law that allows mail-in ballots to be counted if received within days after Election Day, as long as they are postmarked by that date. Based on the justices' questioning, the Court appeared likely to strike down the law, which could have broad implications for mail-in voting nationwide.

Washington PostJustin Jouvenal2026-03-23
Supreme Court appears ready to limit mail-in balloting ahead of midterms

The Supreme Court signaled it is likely to strike down a Mississippi law allowing election officials to count mail-in ballots received up to five days after polls close. Republican groups challenged the law, and the case could have significant implications for mail-in voting rules ahead of upcoming midterm elections.

NYT PoliticsNick Corasaniti2026-03-22
The Supreme Court Could Make it Harder to Vote by Mail in the Midterms

The Supreme Court is considering a case brought by the Republican National Committee that could invalidate mail-in ballots that arrive after Election Day. Critics warn that such a ruling could disenfranchise thousands of voters, with a disproportionate impact on Democratic voters who rely more heavily on mail-in voting. The case has significant implications for voting access in upcoming midterm elections.

SCOTUSblogAmy Howe2026-03-18
Court to hear argument in case that could have significant impact on 2026 elections

The Supreme Court is set to hear oral arguments in Watson v. Republican National Committee, a case that could have major implications for the 2026 elections and beyond. The case is part of the Court's March argument session and involves election-related legal questions with potentially far-reaching consequences.