Incumbent Republican Sen. Bill Cassidy faces a competitive jungle primary tomorrow, May 16, where Rep. Julia Letlow—backed by President Trump's January endorsement—and State Treasurer John Fleming lead in recent Emerson polling from late April, with Cassidy trailing at 21%. Louisiana's nonpartisan blanket primary advances the top two candidates to a November runoff, and with Democrats lacking viable contenders in their simultaneous primary, trader consensus prices a Republican victory at 90% based on the state's entrenched GOP dominance, including Trump's 2024 landslide and no Democratic Senate win since 2002. Cassidy's incumbency advantages and fundraising edge sustain his advancement odds, while sparse general election polling underscores the negligible Democratic path absent a GOP collapse. Late-breaking primary results or scandals could marginally shift dynamics before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Republican
91%

Democrat
10%

Republican
91%

Democrat
10%
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 4:48 PM ET
Resolver
0x2F5e3684c...A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Resolver
0x2F5e3684c...Incumbent Republican Sen. Bill Cassidy faces a competitive jungle primary tomorrow, May 16, where Rep. Julia Letlow—backed by President Trump's January endorsement—and State Treasurer John Fleming lead in recent Emerson polling from late April, with Cassidy trailing at 21%. Louisiana's nonpartisan blanket primary advances the top two candidates to a November runoff, and with Democrats lacking viable contenders in their simultaneous primary, trader consensus prices a Republican victory at 90% based on the state's entrenched GOP dominance, including Trump's 2024 landslide and no Democratic Senate win since 2002. Cassidy's incumbency advantages and fundraising edge sustain his advancement odds, while sparse general election polling underscores the negligible Democratic path absent a GOP collapse. Late-breaking primary results or scandals could marginally shift dynamics before resolution.
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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