Incumbent Brian Mast holds a commanding position in Florida’s 21st Congressional District general election on November 3, 2026, reflecting the district’s R+7 Partisan Voter Index and consistent “Solid Republican” or “Safe Republican” ratings from major forecasters. Mast advanced unopposed through the Republican primary after strong 2024 performance, while Democrat James Martin narrowly won his August primary and faces limited name recognition and fundraising against Mast’s multimillion-dollar campaign resources. No major polling shifts or competitive developments have altered the outlook in recent weeks. Scenarios that could still affect the outcome include late-breaking scandals, candidate health issues, or significant national political events within the final weeks before Election Day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedFL-21 House Election Winner
$15,736 Vol.
$15,736 Vol.
Brian Mast (R)
91%
James Martin (D)
9%
$15,736 Vol.
$15,736 Vol.
Brian Mast (R)
91%
James Martin (D)
9%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Jan 28, 2026, 10:58 AM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Brian Mast holds a commanding position in Florida’s 21st Congressional District general election on November 3, 2026, reflecting the district’s R+7 Partisan Voter Index and consistent “Solid Republican” or “Safe Republican” ratings from major forecasters. Mast advanced unopposed through the Republican primary after strong 2024 performance, while Democrat James Martin narrowly won his August primary and faces limited name recognition and fundraising against Mast’s multimillion-dollar campaign resources. No major polling shifts or competitive developments have altered the outlook in recent weeks. Scenarios that could still affect the outcome include late-breaking scandals, candidate health issues, or significant national political events within the final weeks before Election Day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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