Trump Administration Fights Court Block on Mail-In Ballot Rules

The administration of Donald Trump is engaged in a high-stakes legal battle to implement new U.S. Postal Service (USPS) regulations for mail-in ballots ahead of the November 3 midterm elections. Stemming from a March 2026 executive order, the contested rules would require states to use specific barcoded envelope designs and upload voter eligibility lists to a federal portal. The USPS would then withhold delivery for any ballots that fail to meet these standards or are not matched to the approved lists.

U.S. District Judge Indira Talwani has repeatedly blocked the rules, most recently issuing a preliminary injunction on September 4. Judge Talwani ruled that the mandates likely exceed federal authority and would cause inevitable voter disenfranchisement due to the short timeframe before the election. In response, Solicitor General D. John Sauer has filed multiple emergency appeals with the Supreme Court, arguing the rules are modest preparation requirements necessary to prevent a "pernicious species of fraud."

Operational concerns have intensified the dispute. A whistleblower reported that the required online portal was developed through a rushed and flawed process, prompting an independent review by the USPS Office of Inspector General. Meanwhile, election officials in states like North Carolina, which began mailing ballots on September 5, and Wisconsin have warned that compliance is logistically impossible. Some jurisdictions in Pennsylvania and Washington are expanding secure drop boxes to provide alternatives to the mail as the Supreme Court considers the emergency request.