Incumbent Republican Tom Cotton seeks a third term in the November 2026 Arkansas Senate election against Democrat Hallie Shoffner in a state that delivered a 30-point Republican presidential margin in 2024. Cotton secured his primary nomination with over 80 percent support, benefits from substantial fundraising, and faces a structurally favorable environment where Republicans have dominated statewide contests for years. Recent polls show varying margins, including one within the margin of error, yet forecasters rate the contest Solid or Safe Republican based on partisan fundamentals and historical voting patterns. Trader consensus at 93.8 percent Republican reflects these structural advantages, though an unexpected national political shift or late-cycle scandal could narrow the gap.
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
$16,858 Vol.
$16,858 Vol.

Republican
94%

Democrat
6%
$16,858 Vol.
$16,858 Vol.

Republican
94%

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 Republican Tom Cotton seeks a third term in the November 2026 Arkansas Senate election against Democrat Hallie Shoffner in a state that delivered a 30-point Republican presidential margin in 2024. Cotton secured his primary nomination with over 80 percent support, benefits from substantial fundraising, and faces a structurally favorable environment where Republicans have dominated statewide contests for years. Recent polls show varying margins, including one within the margin of error, yet forecasters rate the contest Solid or Safe Republican based on partisan fundamentals and historical voting patterns. Trader consensus at 93.8 percent Republican reflects these structural advantages, though an unexpected national political shift or late-cycle scandal could narrow the gap.
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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