The Democratic Party has filed an appeal against a ruling by U.S. District Judge Carl Nichols, who declined to block President Donald Trump's executive order that tightens mail-in voting regulations. Issued on March 31, the order requires the U.S. Postal Service to deliver ballots solely to voters listed on each state's approved mail-in ballot list. Democrats contend that this order is unconstitutional and could disenfranchise millions of voters. Judge Nichols ruled that the Democrats' request for a preliminary injunction was premature, as federal agencies had not yet begun to comply with the executive order. The ruling did not assess the legality of Trump's order. In parallel, the Postal Service proposed a new rule on May 29 that would require states to provide lists of voters who received mail-in ballots, allowing for a 30-day public comment period. Additionally, another federal judge in Boston is scheduled to hear arguments on a similar lawsuit filed by a coalition of Democratic states. Trump's ongoing claims of widespread voter fraud have fueled criticism of mail-in voting, which is generally regarded as a secure method for casting ballots.