Arizona is joining more than 20 states in a federal lawsuit challenging new restrictions on voting by mail ahead of the 2026 midterm elections.
The lawsuit, filed Wednesday in federal court in Massachusetts, challenges a U.S. Postal Service rule issued to implement a March executive order from President Donald Trump. Under the rule, states would provide USPS with lists of voters eligible to vote by mail. The postal service would then decline to deliver mail ballots to voters who are not included on those lists.
Arizona Attorney General Kris Mayes is among the officials challenging the policy. The states argue that the federal government and USPS lack authority to determine how states administer their elections, according to the complaint.
The timing of the case is significant for Arizona, where early voting begins Oct. 7 and the general election is Nov. 3. The lawsuit follows a recent Supreme Court ruling that left room for further challenges to the federal voting directive.
The dispute adds another legal battle over election administration as states prepare for the midterms, with the case potentially determining whether the new USPS requirements can take effect before voting begins.
