Early details on Supreme Court arguments over late-arriving mail ballots

The Supreme Court is hearing arguments Monday on whether mail ballots postmarked by Election Day but arriving after polls close should count in federal elections. The case addresses a gap in federal election law that has created inconsistent treatment across states, with some accepting late-arriving ballots and others rejecting them. The ruling could affect how millions of votes are counted in close elections and reshape mail-voting procedures nationwide. The timing is significant because mail-in voting has surged since 2020, making ballot receipt deadlines increasingly consequential in tight races. The decision will clarify whether federal election standards override state-level ballot-receipt rules or whether states retain discretion on late-arriving mail.