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Federal Judge Again Blocks Mail-Ballot Integrity Rule Days After Supreme Court Sided With Trump

Ryan Harper
Ryan Harper •

A federal judge has again blocked the Trump administration's mail-ballot verification rule, days after the Supreme Court cleared the way for the election integrity measure. The ruling adds new uncertainty for states preparing to mail ballots for the November midterms.

Federal Judge Again Blocks Mail-Ballot Integrity Rule Days After Supreme Court Sided With Trump

A federal judge has once again blocked the Trump administration's mail-in ballot integrity rule, just days after the Supreme Court cleared the way for the measure ahead of the November midterms. The ruling is the latest whiplash in an election-year legal battle over whether the U.S. Postal Service can verify that ballots are delivered only to eligible voters. States are already preparing to send out millions of ballots for the November 3 election.

The rule, rooted in President Trump's March executive order on citizenship verification and election integrity, requires ballots to carry unique barcodes and be linked to state-verified voter lists before entering the mail stream. Postal officials say the safeguards are common-sense steps to keep ballots out of the wrong hands.

A Rule Built Around Verification

The finalized policy, published in August, sets up a federal ballot mail portal where state election officials submit voter information such as name and address before ballots are mailed. Each ballot envelope gets a unique identifier that ties it to the voter information maintained by election officials.

Postal Service officials have stressed the agency plays no role in determining voter eligibility, maintaining voter rolls, or counting ballots. No birthdates, Social Security numbers, or other registration details are uploaded to the portal. The process simply confirms that a ballot is going to a person state officials themselves have listed as eligible.

That list-based approach is the heart of the fight. Critics argue the new requirements create hurdles for voters and could disproportionately affect Democrat-leaning voters and battleground states. Supporters call it a long-overdue guardrail for a voting method that accounted for roughly 30 percent of all ballots cast in 2024.

Supreme Court Win, Then Another Injunction

The legal path has been anything but smooth. A federal judge in Massachusetts issued injunctions against the executive order in June and again in August, siding with Democrat-led states that sued to stop it. The administration appealed, and on Monday the Supreme Court ruled 6-3 in favor of the administration, lifting those injunctions on procedural grounds without deciding the underlying constitutional questions.

With the injunctions lifted, the Postal Service announced Thursday that the restrictions were now in effect. Hours later came the new setback: a federal judge again blocked implementation, finding the challenging states are likely to succeed on their claim that the rule is unconstitutional. The judge's order puts the rule back on hold even as the administration argues the states waited too long to sue and that the high court already settled the immediate dispute.

Complicating matters further, 24 states filed a fresh lawsuit Wednesday in federal court in Massachusetts, arguing the new requirements impose burdensome obligations on states just weeks before ballots go out. That case remains pending and could produce yet another round of emergency appeals.

What It Means for November

Time is the real enemy here. With the midterms roughly two months away, every day of litigation uncertainty raises questions about how states will print, verify, and mail ballots under the new framework -- or without it. Election officials in both parties have warned that last-minute rule changes risk confusion at the polls.

The administration has framed the fight as a simple question: should the federal government verify that mail ballots only go to eligible voters? Opponents frame it as an effort to suppress turnout. The Supreme Court's Monday ruling suggests the high court is receptive to the administration's position, even if it has not yet ruled on the merits.

What Happens Next

The immediate question is whether the administration will seek emergency relief from the Supreme Court again, this time to overturn the new injunction. Legal experts expect the fight to move fast, with both sides racing the ballot-printing calendar.

Whatever happens in the courts, the case has already reshaped the midterm conversation. Mail voting is now a front-line issue in battleground states, and every injunction, stay, and ruling will land with the November election in view. For now, the rule is blocked, the appeals are pending, and the next decision could come within days.