Appeals Court Lets USPS Enforce Trump's Mail-Ballot Voter-List Rule While Case Proceeds

On July 17, 2026, a three-judge panel of the U.S. Court of Appeals for the D.C. Circuit stayed a district court injunction that had blocked the U.S. Postal Service from enforcing a proposed rule requiring states to turn over voter lists and use serialized barcodes on mail ballots for federal elections. The panel found the Postal Service had made a strong showing it would likely succeed in arguing that the challenge, brought by the NAACP, was not ripe and fell outside a prior settlement agreement.

The rule implements a March 2026 executive order directing the Department of Homeland Security, the Social Security Administration, and USPS to coordinate on citizenship verification for mail voting. Critics argue that conditioning ballot delivery on states surrendering voter data intrudes on states' constitutional authority to administer elections, while supporters frame it as an election-integrity measure. The stay allows the rule to move forward in parts of the country ahead of the 2026 midterms.

A separate order from a Boston-based federal judge continues to block the underlying executive order in roughly two dozen states, so the rule's reach remains contested and litigation continues.