The Supreme Court blocked President Donald Trump’s mail-in ballot rules to go into effect Monday, upholding a federal judge’s preliminary injunction blocking them.
“The government is unlikely to succeed on the merits of its challenge to the district court’s preliminary injunction,” the court ruled in an unsigned order. The court ruled that “the equitable factors applicable for obtaining emergency relief from this court do not favor a stay.”
Justice Samuel Alito, with whom Justice Clarence Thomas concurred, dissented.
The decision blocks the USPS from enforcing a rule ahead of the Nov. 3 midterm elections.
Trump signed an executive order in March titled “Ensuring Citizenship Verification and Integrity in Federal Elections.”
The order directs the Department of Homeland Security to create lists of U.S. citizens in each state and send those lists to states at least 60 days before a federal election. It directs the U.S. attorney general to prioritize the prosecution of state and local officials who issue federal ballots to ineligible voters, and it directs the U.S. Postal Service to obtain lists of voters to whom states intend to send mail ballots, and directs USPS not to deliver ballots to voters who are not on the state-provided lists.
The attorneys general of 23 states and the District of Columbia, led by California Attorney General Rob Bonta, sued to block the government’s implementation of the order. They argued the executive order conflicts with the Constitution’s provision giving states the authority to determine voter eligibility and to set the “Times, Places, and Manner” of holding elections. Nonprofit groups led by the League of Women Voters of Massachusetts also sued.
U.S. District Judge Indira Talwani issued an injunction blocking the government from implementing the rules on or before the election in the 23 states and D.C. The government appealed, and the Supreme Court ultimately blocked Talwani’s order last month, ruling that the lawsuit was premature because USPS had not finalized regulations implementing the order. The Supreme Court stated that future challenges could proceed once USPS finalized the rule.
USPS published its rules on Aug. 21, requiring states to provide USPS with information on intended mail-ballot recipients and requiring ballot envelopes to use specified election-mail designs and barcodes. The states and nonprofits sued again, and Judge Talwani issued another temporary restraining order blocking the rule. She concluded that the rule likely exceeded federal authority and that it threatened to disenfranchise voters because states had already begun to mail ballots.
The administration returned to the Supreme Court, asking the court to block Talwani’s order, arguing that the judge had blocked the rule without providing substantive reasons for doing so.
“The rule’s regulation of the U.S. mail—not federal elections—is plainly constitutional,” Solicitor General John Sauer wrote in the application. He argued that “the Postal Service’s final rule imposes only modest envelope-design and addressee-information requirements for federal-election ballots sent via U.S. mail.”
Sauer argued that the denial of a stay in this case will cause the government irreparable harm, because many states will mail out ballots this week. He quoted the prior Supreme Court ruling that “the District Court’s errors deal ‘a serious setback’ to the executive’s ‘goals’ while this litigation unfolds.”
Justice Brett Kavanaugh, a Trump appointee, wrote a concurring opinion, stating that “there is at least a fair prosepct that the final rule falls within the Postal Service’s statutory authority.” Yet he ruled that “applying the rule in the 2026 elections would be arbitrary and capricious in violation of the Administrative Procedure Act because state and local officials do not have sufficient time to reasonably implement the rule before the elections.”
North Carolina has already begun mailing absentee ballots, and other states are scheduled to begin doing so in the coming days.
This article may be updated.
