Supreme Court Case on Late-Arriving Mail Ballots: Implications for Election Deadlines and Voting Practices
The Supreme Court is currently considering a case from Mississippi that questions whether states can count late-arriving mail ballots, a matter that has drawn attention from President Donald Trump. This case has implications for voters in 14 states and the District of Columbia that have grace periods for mail-in ballots postmarked by Election Day, as well as 15 states with lenient deadlines for military and overseas voters. A decision is anticipated by late June, just in time to impact the 2026 midterm elections.
State and city election officials have expressed concerns about potential confusion and disenfranchisement if states are required to change their ballot-counting practices shortly before an election. States like California, Texas, New York, Illinois, and rural Alaska have post-Election Day deadlines for ballot submission, which could be affected by the outcome of this case.
The legal challenge at the Supreme Court, supported by the Republican and Libertarian parties and the Trump administration, seeks to uphold an appellate ruling that invalidated a Mississippi law permitting the counting of ballots arriving within five business days of the election if postmarked by Election Day. This case is part of Trump's broader opposition to mail-in voting, despite evidence to the contrary and the established practices in many states.
Last year, Trump issued an executive order on elections that aimed to mandate ballots to be "cast and received" by Election Day, a move that has faced legal challenges. Additionally, some Republican-led states like Ohio, Kansas, North Dakota, and Utah eliminated grace periods for ballot submission last year. The central issue before the Supreme Court is whether federal law establishes a single Election Day requirement for ballots to be both cast by voters and received by state officials.
In a unanimous ruling, Judge Andrew Oldham of the 5th U.S. Circuit Court of Appeals deemed Mississippi's grace period for late-arriving ballots as a violation of federal law. The other judges on the panel, James Ho and Stuart Kyle Duncan, were also appointed by Trump. This case underscores the ongoing debate over mail-in voting practices and the legal framework surrounding ballot submission deadlines.
In conclusion, the Supreme Court's consideration of the Mississippi case regarding late-arriving mail ballots has significant implications for states with grace periods and lenient deadlines for ballot submission. The outcome of this case, expected by late June, could impact the 2026 midterm elections and shape the future of mail-in voting practices in the United States.