A divided Supreme Court just ruled that states can keep counting mail ballots after Election Day, and four conservative justices say the majority turned its back on over 200 years of election practice.
Story Snapshot
- The Supreme Court’s 5–4 ruling in Watson v. Republican National Committee lets states count mail ballots that arrive days after Election Day if postmarked on time.
- Justice Amy Coney Barrett and Chief Justice John Roberts joined three liberal justices, splitting conservatives and drawing a sharp dissent from Justice Samuel Alito.
- The majority said federal Election Day laws only control when votes are cast, not when mailed ballots must be received, leaving deadlines to the states.
- Critics warn this breaks from two centuries of election practice and opens the door to longer counting, more legal fights, and more doubt about close races.
What The Supreme Court Actually Decided About Mail-In Deadlines
In Watson v. Republican National Committee, the Supreme Court upheld a Mississippi law that allows election officials to count mail ballots that are postmarked by Election Day but arrive up to five business days later. The Court held that federal election-day statutes do not require ballots to be received by Election Day. Instead, the majority said those statutes set the day when voters must cast their ballots, not the final deadline for officials to receive and count them.
Justice Amy Coney Barrett wrote the majority opinion, joined by Chief Justice John Roberts and Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson, creating a narrow 5–4 coalition that crossed the usual ideological lines. The case came from a challenge backed by the Republican National Committee, which argued that federal law demands that all votes counted in federal races be in hand by the time polls close on Election Day. The Court rejected that view and said states may decide receipt deadlines themselves.
How Mississippi’s Law Works – And Why It Matters Nationwide
Mississippi’s law lets absentee voters mail or send their ballots by common carrier, as long as every ballot is postmarked on or before Election Day and received by the registrar within five business days after the election. The plaintiffs did not challenge absentee voting in general or early voting. They focused only on the grace period that lets properly mailed ballots arrive after Election Day and still be counted. The Supreme Court held that this post-election receipt window does not violate federal election-day statutes.
The majority stressed that Mississippi is one of about 30 states that already count at least some absentee ballots that are mailed by Election Day but received afterward, often for military and overseas voters. By siding with Mississippi, the Court allowed those existing grace periods in many states and territories to continue, rather than forcing lawmakers to rush through new rules before the next election. Supporters say this protects voters from postal delays that are out of their control, including service members and citizens in remote areas.
Alito’s Warning: Two Centuries Of Practice Ignored
Justice Samuel Alito wrote a strong dissent, joined by Justices Clarence Thomas, Neil Gorsuch, and Brett Kavanaugh. He argued that the decision is inconsistent with the terms of the election-day statutes, contemporary election-law principles, and “two centuries of historical practice” that treated Election Day as the point when the electorate’s choice is made. In his view, if ballots received after Election Day can still change the result, then the real “Election Day” is whenever the last ballot comes in, not the date Congress set.
100 wins in, the fight for fair elections isn't over
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Democracy
Docket“For now, Donald Trump's assault on free and fair elections has stalled. In the last few weeks, he has watched in anger as the Republican National Committee and the Department of Justice have…
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The dissent backed the Republican National Committee’s core argument that federal law should preempt state grace periods in federal contests. Alito warned that allowing ballots to arrive days later can stretch out counting, invite more legal challenges, and undermine public trust, especially in close races. He framed the ruling as a major break from long-standing norms that sought to have results effectively locked in on Election Day, even if final certification took a bit longer.
What This Means For Election Integrity And The Trump Agenda
The ruling is a defeat for efforts by the Republican National Committee and the Trump administration to tighten mail voting deadlines and make Election Day feel like a firm finish line for counting votes. Media outlets and advocacy groups on the left rushed to call the decision a “big win for democracy” and a setback for President Trump, cementing a narrative that any push for stricter deadlines is an attack on voting rights rather than a demand for clear rules.
Legally, the Court was careful to say that Congress still holds ultimate power over federal election rules. That means a future federal law could set a nationwide receipt deadline and override state grace periods. For now, though, the decision locks in a patchwork system where some states insist ballots arrive by Election Day, while many others accept late-arriving ballots as long as they are mailed on time. That mix almost guarantees continued fights over close results, delayed counts, and whose votes should count.
Sources:
supremecourt.gov, facebook.com, aclu-ms.org, reddit.com, law.cornell.edu
