(Slip Opinion) OCTOBER TERM, 2025 1 Syllabus NOTE: Where it is feasible, a syllabus (headnote) will be released, as is being done in connection with this case, at the time the opinion is issued. The syllabus constitutes no part of the opinion of the Court but has been prepared by the Reporter of Decisions for the convenience of the reader. See United States v. Detroit Timber & Lumber Co., 200 U. S. 321, 337. SUPREME COURT OF THE UNITED STATES Syllabus WATSON, MISSISSIPPI SECRETARY OF STATE v. REPUBLICAN NATIONAL COMMITTEE ET AL. CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE FIFTH CIRCUIT No. 24–1260. Argued March 23, 2026—Decided June 29, 2026 The federal election-day statutes set the day for the “election” of Representatives, Senators, and the President on a Tuesday in November. See 3 U. S. C. §1, 2 U. S. C. §§ 1, 7. Mississippi permits certain residents, such as college students away from home and senior citizens, to vote in federal elections by absentee ballot. Miss. Code Ann. §23–15–713. Mississippi is one of roughly 30 States that count at least some absentee ballots mailed by election day but received afterward. Absentee voters in Mississippi may dispatch their ballots by mail or common carrier, and all absentee ballots must be “postmarked on or before the date of the election and received by the registrar no more than five (5) business days after the election.” §§23–15– 637(1)(a), (3). In 2024, the Republican National Committee, the Mississippi Republican Party, and various individuals sued the Mississippi secretary of state and several election officials, contending that federal law prevents Mississippi from counting absentee ballots received after election day. According to plaintiffs, the election-day statutes use the word “election” to refer to two acts—ballot casting and ballot receipt—so by setting the day for the “election,” these statutes set the deadline for both. The Libertarian Party of Mississippi filed a similar suit, and the District Court consolidated the cases, and then granted summary judgment to Mississippi. The Fifth Circuit reversed, holding that Mississippi’s statute is preempted because the federal election-day statutes require ballots to be received by election day. Held: The federal election-day statutes do not prevent Mississippi from counting absentee ballots postmarked by election day but received up