Will a federal judge block the Postal Service's new mail-ballot rule before Sept 1?

A federal judge blocked the Trump administration's finalized Postal Service mail-ballot regulation on Aug. 27, 2026, days before the Sept. 1 deadline. U.S. District Judge Indira Talwani, sitting in Boston, issued a 14-day order in consolidated suits brought by the League of Women Voters and a coalition of states, halting provisions including mandatory ballot-envelope standards, a USPS registration portal, voter-enrollment requirements, and rules allowing rejection of ballots from voters not on a federal eligibility list.

Talwani found the challengers were likely to succeed on claims that the Postal Service exceeded its statutory authority and that the executive branch cannot insert itself into election administration without congressional approval. She also cited the risk of disruption from changing mail-ballot rules inside the 70-day window before an election. A further hearing on the rule's legality was scheduled for Sept. 3.

The ruling followed a rapid sequence of court actions: Talwani had issued a broader nationwide injunction on Aug. 11, which she vacated on Aug. 26 after the Supreme Court, on Aug. 24, lifted one of two lower-court injunctions against the executive order in an unsigned, ideologically divided decision. Her Aug. 27 order reimposed a narrower block on the newly finalized regulation.

The community forecast on this question favored "No" (59% predicted no block would occur before Sept. 1, with only 41% predicting Yes), but the actual outcome was Yes — a federal judge did block the rule before the deadline.