Incumbent Sen. Tom Cotton (R) cruised to an 82% victory in the March 3 Republican primary, facing token opposition and solidifying his path to a third term in deeply red Arkansas, where no Democrat has won a Senate seat since 1996. Challenger Hallie Shoffner (D), a farmer who won her low-turnout primary with 78%, trails significantly in the sole recent poll (Cotton 58%, Shoffner 36% in February) and fundraising ($9.8 million cash on hand for Cotton vs. $579,000 for Shoffner). Forecasters rate the race Safe Republican, with trader consensus at 90.5% implying minimal upset risk absent a major scandal, health issue for Cotton, or national Democratic wave before November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedArkansas Senate Election Winner
Arkansas Senate Election Winner

Republican
93%

Democrat
6%

Republican
93%

Democrat
6%
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, 5:35 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 Sen. Tom Cotton (R) cruised to an 82% victory in the March 3 Republican primary, facing token opposition and solidifying his path to a third term in deeply red Arkansas, where no Democrat has won a Senate seat since 1996. Challenger Hallie Shoffner (D), a farmer who won her low-turnout primary with 78%, trails significantly in the sole recent poll (Cotton 58%, Shoffner 36% in February) and fundraising ($9.8 million cash on hand for Cotton vs. $579,000 for Shoffner). Forecasters rate the race Safe Republican, with trader consensus at 90.5% implying minimal upset risk absent a major scandal, health issue for Cotton, or national Democratic wave before November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions