Mail voting in the 2026 US midterm elections will proceed under existing state procedures after the Supreme Court on 14 September refused to reinstate new US Postal Service rules for federal ballot mail, dealing a setback to the Trump administration's plans to tighten standards before polling day.
In a brief order, the court denied the administration's request for a stay, finding that the government was unlikely to succeed on the merits of its challenge and that the balance of harms did not justify emergency intervention.