On May 12, the Republican National Committee filed this reply brief in the U.S. Supreme Court in Republican National Committee v Genser, 24-786. The Republican Party is trying to persuade the U.S. Supreme Court to overturn a ruling of the Pennsylvania State Supreme Court. The Pennsylvania State Supreme Court had ruled that if a postal ballot is rejected because the outer envelope lacked a date, then the voter who case that invalid ballot can vote provisionally at the polls.
The Republican Party argues the State Supreme Court had no authority to make such a ruling, because the U.S. Constitution doesn’t permit state courts to play a role in determining what the rules should be for federal elections, and that only a state legislature can do that.