Incumbent Republican Tom Cotton holds a commanding position in the 2026 Arkansas Senate race due to the state's consistent Republican voting patterns in federal elections, his strong primary performance, and limited Democratic infrastructure. Cotton secured his party's nomination easily in March, while Democrat Hallie Shoffner emerged from her primary with a similar margin but faces structural headwinds in a state where Republicans have dominated Senate contests for years. Recent polling, including a July survey showing a narrow gap and an earlier February reading with a larger Republican edge, reflects this baseline advantage. Trader consensus at 93.5% Republican probability aligns with these fundamentals and historical patterns for similar seats. Potential shifts could arise from major national political realignments, unexpected candidate withdrawals, or late developments within the November 3 resolution window, though no such events have materialized to date.
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
$13,775 Vol.
$13,775 Vol.

Republican
93%

Democrat
5%
$13,775 Vol.
$13,775 Vol.

Republican
93%

Democrat
5%
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 holds a commanding position in the 2026 Arkansas Senate race due to the state's consistent Republican voting patterns in federal elections, his strong primary performance, and limited Democratic infrastructure. Cotton secured his party's nomination easily in March, while Democrat Hallie Shoffner emerged from her primary with a similar margin but faces structural headwinds in a state where Republicans have dominated Senate contests for years. Recent polling, including a July survey showing a narrow gap and an earlier February reading with a larger Republican edge, reflects this baseline advantage. Trader consensus at 93.5% Republican probability aligns with these fundamentals and historical patterns for similar seats. Potential shifts could arise from major national political realignments, unexpected candidate withdrawals, or late developments within the November 3 resolution window, though no such events have materialized to date.
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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