Federal Judge Blocks Trump Administration Mail Ballot Rule Ahead of Midterms

A federal judge in Washington, D.C., issued a preliminary injunction late Sunday, September 13, 2026, preventing the U.S. Postal Service from implementing new regulations that would restrict mail-in voting. The order by U.S. District Judge Carl J. Nichols marks the second major judicial intervention against the administration's election rule, which was issued on August 21. The ruling comes as the U.S. Supreme Court is already reviewing a separate, similar injunction issued by U.S. District Court Judge Indira Talwani in Boston.

Judge Nichols, who had previously declined to issue an injunction in May on the grounds that the legal challenge was premature, determined that the administration's formal issuance of the rule necessitated a new review. In his ruling, Nichols stated that plaintiffs had successfully demonstrated an increased risk that a significant number of valid absentee or mail-in ballots would be excluded from the count if the regulations were permitted to take effect. He emphasized that the public holds a strong interest in ensuring that all eligible votes are counted in the upcoming midterm elections.

The administration's rule requires that all ballot envelope designs receive pre-approval from the Postal Service and mandates that states upload the identities of ballot recipients into an online portal that is currently inactive. These requirements have faced significant opposition from election officials, who argue that implementing such technical changes is logistically impossible so close to the general election. The union representing postal workers has also formally opposed the executive order, asserting that verifying voter eligibility falls outside the scope of their professional responsibilities.

Mail-in ballots are already being distributed in Alabama, North Carolina, and Wisconsin, with additional states scheduled to begin the process this week. A whistleblower report submitted to Congress warned that the enforcement of these new regulations could lead to the disenfranchisement of millions of voters. The legal battle over mail voting remains a central point of contention, with President Donald Trump continuing to characterize the method as a source of fraud, despite his own history of utilizing mail-in ballots and the lack of evidence supporting his claims regarding the 2020 election.

The Supreme Court is currently weighing the administration's appeal of the Boston-based injunction. The high court previously lifted an earlier freeze by Judge Talwani, citing the premature nature of the lawsuit at that time, but the refiling of these cases in both Boston and Washington, D.C., has returned the issue to the federal judiciary's center stage. The legal status of these regulations remains subject to further review by the Supreme Court.