Supreme Court Agrees to Hear Mississippi Mail-In Ballot Receipt Deadline Case

The Supreme Court agreed to hear Watson v. Republican National Committee, a challenge to Mississippi's law allowing mail-in ballots postmarked by Election Day to be counted if received within five days after. The RNC argues the law extends Election Day in violation of federal statute. A ruling could force 17 states and D.C. to change their ballot receipt laws, affecting tens of millions of voters. Oral arguments expected spring 2026; ruling by summer 2026.