Incumbent Republican Sen. Lindsey Graham's commanding position in solidly Republican South Carolina underpins trader consensus at 88% for a GOP win in the November general election, reflecting his incumbency advantage, Trump endorsement, and fundraising dominance with over $13 million cash on hand. The March 30 filing deadline locked in a crowded GOP primary field including challengers Paul Dans and Mark Lynch, where Graham leads polls by 14–43 points despite sponsor biases; Democratic contenders like Annie Andrews remain fragmented ahead of the June 9 primaries. Recent Democrat-sponsored general polls show Graham ahead 47–42% over Andrews, but traders discount these amid the state's GOP supermajorities and history of lopsided Senate results.
Experimental AI-generated summary referencing Polymarket data · Updated$18,364 Vol.
$18,364 Vol.

Republican
88%

Democrat
13%
$18,364 Vol.
$18,364 Vol.

Republican
88%

Democrat
13%
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, 5:04 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. Lindsey Graham's commanding position in solidly Republican South Carolina underpins trader consensus at 88% for a GOP win in the November general election, reflecting his incumbency advantage, Trump endorsement, and fundraising dominance with over $13 million cash on hand. The March 30 filing deadline locked in a crowded GOP primary field including challengers Paul Dans and Mark Lynch, where Graham leads polls by 14–43 points despite sponsor biases; Democratic contenders like Annie Andrews remain fragmented ahead of the June 9 primaries. Recent Democrat-sponsored general polls show Graham ahead 47–42% over Andrews, but traders discount these amid the state's GOP supermajorities and history of lopsided Senate results.
Experimental AI-generated summary referencing Polymarket data · Updated



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