A federal judge temporarily blocked President Donald Trump’s bid for the U.S. Postal Service to exert control over mail-in voting ahead of the midterm elections as one state begins mailing out ballots.

U.S. District Judge Indira Talwani, who previously blocked a related effort, found the new Postal Service rule dictating how mail-in ballots can be sent is likely unlawful and unconstitutional.

The action comes a day after the Trump administration asked the Supreme Court to override a temporary order halting the rule issued by Talwani last week.