President Donald Trump cast a mail-in ballot in Florida's Republican primary election, using the same voting method he has spent years characterizing as unreliable and susceptible to fraud. The vote was reported by multiple outlets across the political spectrum on August 17, 2026.

Trump has been a registered voter in Palm Beach County, Florida since relocating his primary residence from New York to Mar-a-Lago. Florida allows registered voters to request and return absentee ballots without providing a specific reason, and Trump has made use of this option on prior occasions as well.

The president's repeated public warnings about mail-in voting — including claims during and after the 2020 election that it enabled widespread fraud — have made his personal use of the method a recurring point of discussion. Critics have noted the contradiction between his rhetoric and his own voting behavior, while supporters have argued there is a distinction between limited, individually requested absentee voting and mass mail-in voting programs.

Florida's primary election determines Republican nominees for a range of state and federal offices. Trump has been active in endorsing candidates in several of the state's contested races ahead of the vote.