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2026 candidates we're tracking in FL-21
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James T. Martin
Democratic
U.S. Coast Guard veteran and fourth-generation Floridian who chased drug runners, served overseas in combat zones, and advised leaders in the White House, per his campaign site; he is endorsed by Kamala Harris and the Palm Beach Post, per Florida Politics and the Palm Beach Post.
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Brian Mast
Republican
Incumbent
Brian Mast served more than 12 years in the U.S. Army, working as a bomb disposal expert with Joint Special Operations Command and losing both legs to an improvised explosive device in Afghanistan, for which he received the Bronze Star, the Purple Heart and the Army Commendation Medal for Valor, per his official House biography. He later worked as an explosives specialist for the Department of Homeland Security, and that biography says he is in his fifth term representing Florida's 21st District. He chairs the House Foreign Affairs Committee and serves on the Transportation and Infrastructure Committee, where the biography says he focuses on Lake Okeechobee water quality.
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Alexander Cooke
No Party Affil
Alexander Cooke, a former Mayor of Juno Beach and small business owner, is running for Florida's 21st Congressional District as an independent candidate, per his campaign site. Alexander Cooke appears on the November 3, 2026 ballot as a no-party-affiliation candidate for FL-21, per the Florida Division of Elections certified candidate list.
About this race
Florida's 21st Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The Florida primary is Tuesday, August 18, 2026, and the general election is Tuesday, November 3, 2026.