Claimant
U.S. District Judge Carl Nichols (Trump appointee, D.C. District Court); challenged by coalition of 23 state AGs plus PA Governor Shapiro
Source
NPR·Center-Left. Also: [Al Jazeera](https://www.aljazeera.com/news/2026/5/28/us-judge-rejects-immediate-block-on-trumps-mail-in-voting-executive-order) | [Washington Post](https://www.washingtonpost.com/politics/2026/05/28/trump-executive-order-mail-voting-stands-now-federal-court-rules/) | [Votebeat](https://www.votebeat.org/national/2026/05/28/trump-executive-order-mail-ballots-midterm-elections-carl-nichols/) | [PBS News](https://www.pbs.org/newshour/politics/federal-judge-refuses-to-block-trump-order-to-create-federal-voter-list-and-limit-mail-voting)
Notes
USPS proposed rulemaking deadline is within 60 days of March 31 signing — approaching. A second federal court in Boston is expected to rule as early as early June. This story will escalate. Watch for states refusing USPS coordination.
Coverage Gap
Far-right outlets (Breitbart, Gateway Pundit) ran the original EO signing heavily but have not prominently covered the May 28 court ruling.
Documentation
STRONG