A federal judge has blocked President Trump's executive order limiting mail balloting. This order adds another hurdle to attempts to change election rules. The Supreme Court is already considering the administration's appeal of a similar ruling. A U.S. District Judge in Washington, D.C., issued a preliminary injunction against the new Postal Service rule. He stated there's a significant risk of ballots not being counted without this injunction. The public has a strong interest in ensuring all eligible ballots are counted. This rule, issued in August, requires pre-approval of ballot envelope designs by the Postal Service. It also mandates states upload recipient identities to an online portal. Mail ballots are already being sent out in several states. A whistleblower warned the rule could disenfranchise millions. The Postal Service workers' union opposes the order, stating voter eligibility verification is not their role. Trump has frequently targeted mail balloting, falsely claiming it leads to fraud.