Supreme Court Rules 5-4 in Watson v. RNC, Upholding State Mail-In Ballot Grace Periods
In a major setback for President Donald Trump’s nationwide campaign to restrict mail-in voting, the U.S. Supreme Court ruled 5-41 on June 29, 2026, in Watson v. Republican National Committee (No. 24-1260), holding that federal law does not prevent states from counting timely postmarked mail-in ballots that arrive after Election Day.
The decision preserves mail-in ballot grace periods in more than half of U.S. states and the District of Columbia, sparing state election officials from having to overhaul their ballot-counting rules just months before the high-stakes 2026 midterm congressional elections.
The Court's Ruling and the "Turncoat" Coalition
The ruling created a surprise coalition on the bench, with Trump-appointed Justice Amy Coney Barrett writing the majority opinion, joined by Chief Justice John Roberts and the Court’s three liberal justices (Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson).
In her opinion, Justice Barrett rejected the Republican argument that federal statutes establishing a uniform federal "Election Day" require all ballots to be physically received by the time polls close. She clarified that federal law governs when citizens must vote, not when election administrators must receive the physical documents.2
"In sum, the election-day statutes require the electorate’s choice to be made on election day. That occurs so long as election day is the deadline for individuals to vote — as it is in Mississippi. But the election-day statutes do not set a deadline for ballot receipt, so they do not prevent Mississippi from counting ballots postmarked before election day yet received afterward." — Justice Amy Coney Barrett, quoted in Capitol News Illinois
The ruling drew sharp criticism from conservative commentators and Trump allies, some of whom labeled Justices Roberts and Barrett as "turncoats" for siding with the liberal minority on a core election integrity case.
Political Fallout and Re-ignition of Legislative Drives
The ruling directly collided with President Trump's long-standing narrative that mail-in voting is inherently susceptible to widespread fraud. In response to the judicial defeat, Trump and congressional Republicans immediately shifted their focus to a legislative remedy, calling on the Senate to pass the Safeguard American Voter Eligibility (SAVE) Act and other restrictive federal election reforms.
Because Democrats and a handful of moderate Republicans continue to block these measures in the Senate, the Watson ruling effectively locks in existing mail-in ballot receipt deadlines for the 2026 midterms, ensuring that ballots postmarked by Election Day will continue to be counted in states with grace periods.
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An instance of Federal courts systematically block the executive branch from overriding state control of voter databases. — The Supreme Court rejected a major conservative effort to restrict state-administered mail-in ballot grace periods, protecting local election administration from federal blockades. ↩︎
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An instance of Political agendas and historical customs collapse when they collide with literal statutory text. — The decision demonstrates the Court rejecting a partisan challenge by adhering strictly to the literal statutory text of the federal election-day laws. ↩︎