The Supreme Court is hearing arguments in a case from Mississippi over whether states can count late-arriving mail ballots, a target of President Donald Trump. The Save America Act would change the requirements required to register and cast a ballot, potentially causing logistical hurdles for millions of Americans, particularly married women. The bill requires voters to show documentary proof like a passport or birth certificate to register, meaning even most real IDs would not be accepted. The White House has reiterated its push for voters to prove their citizenship and remove non-citizens from existing voter rolls. The case could affect voters in 14 states and the District of Columbia, which have grace periods for ballots cast by mail, provided they are postmarked by Election Day, and an additional 15 states with more forgiving deadlines for ballots from military and overseas voters. A ruling is expected by late June, early enough to govern the counting of ballots in the 2026 midterm congressional elections.