In loss for Trump, U.S. Supreme Court won't let Postal Service restrict mail ballots

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No other Justice dissented publicly. The U.S. Supreme Court has ⁠a 6-3 conservative majority. File | Photo Credit: Reuters

The U.S. Supreme Court declined on Monday (September 14, 2026) to let the U.S. Postal Service enforce a rule targeting mail-in ballots, ‌dealing a setback to President Donald Trump’s effort to restrict voting by mail ahead of November’s ​midterm elections that will determine control of Congress.

The Justices denied the Justice Department’s request to lift a ruling ⁠by Boston-based U.S. District Judge Indira Talwani that blocked the Postal Service from enforcing the measure while legal challenges by states and voting-rights groups proceed. The agency adopted the measure after Trump issued a March executive order aimed at tightening rules governing mail voting.

“The government is unlikely ‌to succeed on the merits of its challenge to the District Court’s preliminary injunction,” the court said in its brief, one-paragraph order.

Justice Samuel Alito, joined by fellow conservative Justice Clarence Thomas, dissented from Monday’s decision, comparing some ‌of the challengers’ claims to a “Hail Mary pass” that is “unlikely to be successfully completed,” using a football analogy.

“The ‌Postal ⁠Service has broad authority to regulate the mail,” Justice Alito added.

No other Justice dissented publicly. The court has ⁠a 6-3 conservative majority.

Mr. Trump’s fellow Republicans are locked in a tight battle to retain control of Congress in the midterms. Restricting mail-in ballots would stand to benefit Republicans given that Democratic voters disproportionately use mail-in ballots, according to various surveys.

Another federal judge, Washington, D.C.-based U.S. District Judge Carl Nichols, also ruled against the ​new rule on Sunday (September 13, 2026).

Under the new rule, States ‌would have to provide lists of mail ballot recipients to the Postal Service and use agency-approved outbound and return ballot mail envelopes outfitted with unique barcodes. The Postal Service could then refuse to send out ballots that do not comply with the new standards or are associated with voters who do not appear on the lists.

Critics have said the plan could ‌disrupt the delivery of thousands of legitimate ballots as the November 3 vote approaches and cause chaos given ​imminent plans by many states to send out mail ballots to eligible voters. The administration has said the new rule will prevent voter fraud, though evidence of such fraud is rare.

Mr. Trump signed his executive ⁠order targeting mail-in ballots after years of casting doubt on their security, though he often votes by mail himself. Trump has made false claims of widespread fraud in U.S. elections including his 2020 loss to former Democratic President Joe Biden.

The administration in a September ‌6 emergency request urged the Supreme Court to allow it to implement an “important federal policy to protect the mails from being used to commit voter fraud.”