A federal judge in Washington state has temporarily blocked the U.S. Postal Service from new operational changes that have slowed down mail delivery ahead of the election. Judge Stanley Bastian accused President Trump and Postmaster General Louis DeJoy of being “involved in a politically motivated attack on the efficiency of the Postal Service.” He also said the changes created a “substantial possibility many voters will be disenfranchised.”

On Thursday, Trump continued to cast doubt on mail-in voting. In a tweet, he wrote, “the Nov 3rd Election result may NEVER BE ACCURATELY DETERMINED, which is what some want.” Twitter flagged Trump’s tweet and provided information about how voting by mail is safe and legal.