A group of states including California, Massachusetts, Nevada, and Washington filed a new lawsuit Wednesday challenging the Trump administration's mail-in voting restrictions. The legal action follows a Supreme Court ruling that the states had previously sued prematurely. The U.S. Postal Service (USPS) formally published its final rule on the matter Wednesday, which the states argue makes the case ready for judicial review.
The USPS final rule requires mail-in ballots to include specific design elements, such as unique barcodes and an official logo. It also mandates that states provide lists of voters eligible to vote by mail. The Postal Service stated it will refuse to deliver ballots that do not meet these specifications or belong to individuals not included on the submitted eligibility lists. The states' lawsuit argues that Congress has not granted the USPS authority to set rules for federal elections or mail-in voting.
The case has been assigned to U.S. District Judge Indira Talwani, who has been presiding over related legal challenges for several months. In a separate case brought by private groups, Judge Talwani has maintained a nationwide hold on the administration’s plans. The Department of Justice (DOJ) is currently requesting that the judge lift that injunction following the Supreme Court's emergency ruling. The DOJ has not yet issued a formal comment on the new filing.
The scale of the impact involves billions of dollars in potential legal and operational shifts. In a separate but simultaneous legal development, 51 states and territories reached a $17 billion settlement with Meta over child safety concerns, demonstrating the high financial stakes of multi-state litigation against major institutions. For the voting case, the immediate concern is the timing of the 2026 midterms, as some states are scheduled to begin mailing ballots to residents within days of this filing.
A ruling in favor of the administration would establish a precedent for federal agency oversight of state-run election mail, while a ruling for the states would maintain local control over ballot design and voter rolls. The knock-on effects could include changes to state election budgets and the technical infrastructure used to track mail-in ballots. Judge Talwani has already noted that the USPS violated a previous injunction by moving forward with its plans, though she has not yet issued new orders. Further court dates regarding the injunction and the merits of the new lawsuit have not been reported.