Incumbent Democrat Chris Coons seeks a fourth term in Delaware's solidly Democratic Senate seat, where the state has not elected a Republican since 1994 and recent presidential results show consistent double-digit Democratic margins. Forecasters across outlets rate the race Safe or Solid Democratic ahead of the September 15 primaries and November 3 general election, citing Coons' long tenure, fundraising edge, and name recognition against Republican Michael Katz, a former state senator who switched parties and faces limited prospects. Trader consensus at 96% for a Democratic winner reflects these structural advantages and the absence of competitive polling or major shifts in recent months. A late scandal, serious health development for the incumbent, or an unusually strong national Republican midterm wave could narrow the gap, though such developments remain low-probability factors in current assessments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$16,526 Vol.
$16,526 Vol.

Democrat
96%

Republican
5%
$16,526 Vol.
$16,526 Vol.

Democrat
96%

Republican
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 Democrat Chris Coons seeks a fourth term in Delaware's solidly Democratic Senate seat, where the state has not elected a Republican since 1994 and recent presidential results show consistent double-digit Democratic margins. Forecasters across outlets rate the race Safe or Solid Democratic ahead of the September 15 primaries and November 3 general election, citing Coons' long tenure, fundraising edge, and name recognition against Republican Michael Katz, a former state senator who switched parties and faces limited prospects. Trader consensus at 96% for a Democratic winner reflects these structural advantages and the absence of competitive polling or major shifts in recent months. A late scandal, serious health development for the incumbent, or an unusually strong national Republican midterm wave could narrow the gap, though such developments remain low-probability factors in current assessments.
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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