On September 14, the U.S. Supreme Court declined to overturn a federal injunction blocking key provisions of President Donald Trump’s executive order aimed at securing mail-in voting. The order directed the Department of Homeland Security and the Social Security Administration to compile lists of eligible voters, cross-reference these with state voter rolls, and then task the U.S. Postal Service with rejecting any ballots deemed ineligible.
A federal judge in Boston had previously halted implementation of the order, citing concerns about its legality, and the Supreme Court maintained that injunction. The court’s order was brief and unsigned, stating only that the government was “unlikely to succeed on the merits of its challenge to the District Court’s preliminary injunction.”
Justice Brett Kavanaugh issued a one-page concurring opinion, expressing that while the Postal Service might have statutory authority to issue the rule, applying it ahead of the 2026 elections would be “arbitrary and capricious” under the Administrative Procedure Act. He noted that election officials would not have adequate time to implement the changes properly before voters go to the polls.
Justices Samuel Alito and Clarence Thomas dissented, arguing some challengers lacked standing, and they criticized the majority’s skepticism of the case’s merits. The dissent suggested the plaintiffs were pursuing a claim recently described by the court as a “Hail Mary pass” unlikely to succeed.
Despite the narrow details of the ruling, seven justices saw insufficient evidence to conclude the administration would prevail on the merits, resulting in the denial of the petition.
This decision marks the latest instance of the Supreme Court rejecting a prominent Trump policy initiative. Earlier this year, the court struck down the president’s tariff measures and a controversial executive order redefining birthright citizenship. However, partisan perceptions of the court remain deeply divided. Polling indicates that a substantial majority of Democrats believe the court favors Trump, even as many rulings have gone against the administration. Meanwhile, some Republicans express discontent with certain justices for decisions they interpret as disloyal to Trump’s agenda.
The president publicly criticized the court’s decision on social media, alleging justices were intimidated by Democrats and lacking the courage to “save our America.” Notably, Justice Amy Coney Barrett has experienced a decline in favorability among Republicans amid several rulings rejecting Trump administration policies.
Legal experts highlight that while the issue of election security is legitimate, Trump’s approach raised constitutional questions. Election administration is primarily a state function governed by federal legislation, and attempts by the executive branch to unilaterally impose federal controls through the Postal Service conflict with the separation of powers. The Supreme Court’s intervention reflects its role in preserving the constitutional balance by rejecting executive actions that attempt to bypass Congress.
The ongoing controversies surrounding the court’s involvement in politically charged cases underscore broader challenges regarding the judiciary’s perceived impartiality and the limits of presidential authority in shaping election policy.