The Supreme Court has sided against President Trump, rejecting his efforts to enact new mail-in voting restrictions for the midterm election.
The ruling released Monday by the high court means the U.S. Postal Service is expected to continue delivering ballots as usual.
Voting by mail has already begun in states including Alabama, North Carolina and Wisconsin, with more soon to follow — including Western states such as Hawaii, Oregon and Washington, where elections are held primarily or fully with mail ballots.
Under the still-blocked USPS plan, which followed an executive order by Trump, states would have had to turn over lists of voters' names and addresses and have certain specific barcodes on ballot envelopes in order to have them delivered by the mailing agency.
Earlier this month, a federal judge in Boston had issued a preliminary injunction against USPS, blocking the mailing agency from imposing those new ballot requirements on states. The judge found the requirements are likely illegal because the Postal Service has no authority to control mail-in voting.
Now, a majority of the Supreme Court decided to keep that injunction in place.
Trump said he issued the call for USPS to change its rule for ballot mail as a way to stop illegal voting by non-U.S. citizens, a problem that many studies and audits show is extremely uncommon. For this legal fight over the USPS plan, the administration's lawyers have provided the courts with no evidence of mail-voting fraud.
Trump has been a vocal critic of the way around one-third of voters cast ballots in the last two federal elections. In 2024, the share of voters who reported casting ballots by mail was higher among Democrats (37%) than Republicans (24%), according to a national survey by the MIT Election Data and Science Lab.
In a social media post last year, Trump said he is "going to lead a movement to get rid of MAIL-IN BALLOTS" and claimed that "ELECTIONS CAN NEVER BE HONEST WITH MAIL IN BALLOTS/VOTING."
This year, Trump himself voted by mail in Florida.
This is a developing story and will be updated.
Editor's note: USPS is a financial supporter of NPR.
Edited by Benjamin Swasey
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