Bottom line: The USPS will not be able to change mail ballot rules without Congressional approval.
What's happening: The Supreme Court denied a request by the Trump administration to allow the United States Postal Service (USPS) to change mail ballot rules ahead of the 2026 elections, with Justice Sonia Sotomayor stating that the actions would be "arbitrary and capricious” and violated the Administrative Procedures Act. The request was made by former President Donald Trump, who had sought to alter the rules to make it easier for voters to request and return absentee ballots.
What to do: Security leaders should ensure that their organizations are prepared for potential mail ballot-related security incidents, including monitoring for phishing attacks and protecting sensitive data.