23 states sue Trump over mail ballot executive order

A coalition of 23 states and the District of Columbia filed suit in federal district court in Massachusetts on April 3, 2026, seeking to block Trump's March 31 executive order reshaping mail voting. Led by Pennsylvania Governor Josh Shapiro, the states argued the order violates federalism and the Electors Clause by transferring state election administration authority to DHS and USPS. The suit warned that millions of voters could lose mail ballot access if the order stands.