The conservative majority on the Supreme Court of the United States signaled Monday it may be prepared to limit the counting of mail-in ballots that arrive after Election Day, even if they are postmarked on time—an issue that could reshape election rules nationwide ahead of key midterm contests.
During nearly two hours of oral arguments in Watson v. Republican National Committee, the justices examined a Mississippi law allowing election officials to count mail-in ballots received up to five days after Election Day, provided they are postmarked by or before that date.
The case places the court at the center of a broader legal and political debate over voting rules, as Donald Trump continues to criticize mail-in voting during his second term, arguing such practices undermine public trust in election outcomes.
Conservative justices raise concerns
Several conservative justices appeared sympathetic to arguments from the Republican Party and the Trump administration, suggesting that extending ballot receipt deadlines beyond Election Day could erode confidence in election results.
Chief Justice John Roberts questioned whether “Election Day” should be interpreted strictly as a single day for both casting and receiving ballots.
“If Election Day is the voting and taking, then it has to be that day,” Roberts said, while also probing how such a definition could affect early voting practices.
Justice Samuel Alito echoed concerns about delayed results, warning that prolonged counting periods could weaken public trust. Justice Brett Kavanaugh added that shifting outcomes after Election Night could fuel claims of a “rigged election.”
Justice Neil Gorsuch pressed attorneys on whether allowing late-arriving ballots could create a “slippery slope,” questioning how far states might go in extending deadlines.
Chief Justice Roberts and Justice Amy Coney Barrett are widely seen as potential deciding votes. Both asked pointed questions of attorneys on both sides, signaling they could play a pivotal role in the final outcome.
Broader implications for states
Mississippi is among 14 states, along with the District of Columbia and several U.S. territories, that allow late-arriving mail ballots to be counted if postmarked by Election Day.
Attorneys defending the state argued that federal law requires only that voters cast ballots by Election Day—not that election officials must receive them by then.
Opponents, including the Republican National Committee, contend that ballots must be received by Election Day to ensure clarity, uniformity, and public confidence in election results.
The case is one of several major election-related disputes before the Supreme Court this term, including challenges involving congressional redistricting and campaign finance laws.
A decision is expected by June, potentially setting a nationwide standard for how states handle mail-in ballots—and shaping the rules governing future federal elections.