Federal judge temporarily blocks Postal Service rules restricting mail-in ballots

Federal court halts postal restrictions in Boston

U.S. District Judge Indira Talwani in Boston issued a temporary restraining order on Thursday, August 27, halting the enforcement of new U.S. Postal Service mail-in ballot regulations. The 14-day hold prevents the postal agency from enacting the restrictions only about a week before states begin mailing out initial ballots for the November 3 midterm elections. Judge Talwani, an appointee of President Barack Obama, acted on emergency motions filed by Democratic state attorneys general and voting rights organizations. The court scheduled a formal hearing for September 3 to determine whether to grant a longer-term preliminary injunction against the federal policy. The legal intervention temporarily freezes the administration's initiative as Republicans prepare to defend a slim congressional majority in November.

New rules and national mail voting practices

The Postal Service issued the contested regulations to execute an executive order signed by President Donald Trump in March. Under the published rule, individual states must submit detailed lists of eligible mail ballot recipients to the Postal Service. Outbound and return ballot envelopes are required to feature unique barcodes, and postal authorities are permitted to refuse delivery for ballots that lack barcodes or belong to individuals absent from state lists. Across the country, all 50 states allow some form of mail voting, with 29 states permitting voters to request mail ballots without providing an excuse and eight states conducting elections entirely through the mail. During the 2024 national election, the Postal Service processed nearly 100 million ballots, which accounted for approximately 30% of all votes cast nationwide.

Procedural shifts between the courts

Thursday's restraining order follows an appellate battle that reached the highest judicial level earlier in the week. On Monday, August 24, the U.S. Supreme Court ruled in favor of the Trump administration, with its 6-3 conservative majority vacating an earlier injunction issued by Judge Talwani. The Supreme Court did not assess the underlying legality of Trump's executive order, but found that prior legal challenges had been initiated prematurely before the Postal Service published a binding rule. The agency then allowed the formal regulation to take effect on Wednesday, August 26, prompting immediate legal action to block enforcement before the autumn vote.

The government subsequently received such relief from those injunctions, meaning the injunctions no longer preclude the implementation of the Rule for November 3, 2026 or any earlier federal election.

State coalitions challenge constitutional authority

Following the implementation of the rule on Wednesday, a coalition of 24 state attorneys general and voting rights groups, including the League of Women Voters, filed renewed lawsuits in Massachusetts federal court. The plaintiffs contend that the Postal Service overstepped its legal bounds and usurped powers granted directly to states and Congress under the U.S. Constitution. State officials argued in court filings that the eleventh-hour mandate causes irreparable harm by forcing election offices to buy new tracking machinery, acquire specialized envelopes, build verification databases, and train staff within weeks. President Trump has long targeted mail voting, repeating unverified assertions that the method enables fraud and asserting that states fail to confirm that registered voters are U.S. citizens, following his 2020 defeat to Joe Biden.