The U.S. Supreme Court has given the Trump administration a temporary victory in its efforts to tighten mail-in voting rules ahead of the November 2026 midterm elections. In a 6-3 decision, the court’s conservative majority lifted an injunction that had previously stalled President Donald Trump’s executive order. Despite this ruling, a separate injunction remains in effect, limiting the administration’s full implementation of the changes due to ongoing legal disputes.
The executive order in question, issued in March, mandates the federal government to compile a list of eligible voters based on citizenship, and stipulates that mail-in ballots should only be sent to individuals on this list. It also seeks increased federal oversight over state and local election officials’ handling of voter eligibility. This order has faced opposition from Democratic officials across 23 states and Washington, D.C., who argue that it violates the constitutional authority granted to states and Congress over election administration. They also express concern that such major changes so close to the election could disrupt preparations and hinder eligible voters from casting their ballots.
A Massachusetts judge initially blocked the executive order, asserting that the president lacks the authority to dictate state administration of federal elections. This decision was upheld by an appeals court, and a subsequent nationwide injunction remains in place. The Supreme Court’s recent decision to lift the first injunction does not guarantee that all actions taken by the administration to enforce the order will be deemed lawful, leaving room for further legal challenges that could impact the extent of the policy’s enforcement.
The court’s ruling has been met with strong criticism from Democratic leaders and voting-rights advocates, who argue that the proposed measures could lead to confusion and make it more difficult for eligible voters to participate in elections. In response, California and other states are preparing additional legal challenges. The ongoing dispute arises less than 100 days before the critical midterm elections, where the balance of power in the U.S. House of Representatives and Senate is at stake. Mail-in voting remains a significant component of the U.S. electoral system, accounting for approximately 30% of ballots during the 2024 presidential election. President Trump has consistently questioned the security of mail-in voting, advocating for broader election rule changes as part of his administration’s policy agenda.