Recent polls have tightened the Ohio special U.S. Senate race, with Sherrod Brown holding a slight edge over incumbent Jon Husted in key March surveys from EMC Research (Brown +4%) and OnMessage (Brown +2%), pushing the polling average to Brown +1 amid voter concerns over healthcare costs. This battleground matchup for JD Vance's vacated seat reflects trader consensus favoring Democrats at 54.5% implied probability, bolstered by Brown's fundraising advantage ($9.9M cash on hand), prior Senate experience, and historical midterm penalties for the president's party in swing states like Ohio. Primaries on May 5 could solidify nominees, with the November 3 general election hinging on turnout and independent voters.
Experimental AI-generated summary referencing Polymarket data · Updated$64,158 Vol.
$64,158 Vol.

Democrat
55%

Republican
43%
$64,158 Vol.
$64,158 Vol.

Democrat
55%

Republican
43%
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, 4:38 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...Recent polls have tightened the Ohio special U.S. Senate race, with Sherrod Brown holding a slight edge over incumbent Jon Husted in key March surveys from EMC Research (Brown +4%) and OnMessage (Brown +2%), pushing the polling average to Brown +1 amid voter concerns over healthcare costs. This battleground matchup for JD Vance's vacated seat reflects trader consensus favoring Democrats at 54.5% implied probability, bolstered by Brown's fundraising advantage ($9.9M cash on hand), prior Senate experience, and historical midterm penalties for the president's party in swing states like Ohio. Primaries on May 5 could solidify nominees, with the November 3 general election hinging on turnout and independent voters.
Experimental AI-generated summary referencing Polymarket data · Updated



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