Incumbent Senator Chris Coons commands overwhelming trader consensus at 93.5% to win Delaware's Democratic Senate primary on September 15, 2026, reflecting his established record, 2020 reelection victory with 59% of the vote, and incumbency advantages in the reliably blue state. Challenger Christopher Beardsley, a Democratic socialist and former HUD analyst who announced his bid in December 2025, holds 5.4% with limited visibility, fundraising, or endorsements to date, and no other candidates have emerged. Absent recent polling shifts or catalysts in the past month, markets price in low upset risk; realistic challenges would require a Coons scandal, Beardsley momentum surge, or high-profile late entrant before the filing deadline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$10,830 Vol.
$10,830 Vol.
Chris Coons
94%
Christopher Beardsley
5%
$10,830 Vol.
$10,830 Vol.
Chris Coons
94%
Christopher Beardsley
5%
If no 2026 Delaware Democratic Senate Primary takes place, this market will resolve to "Other".
The resolution source for this market will be the first announcement of the results from the Delaware Democratic party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Dec 12, 2025, 11:02 AM ET
Resolver
0x2F5e3684c...If no 2026 Delaware Democratic Senate Primary takes place, this market will resolve to "Other".
The resolution source for this market will be the first announcement of the results from the Delaware Democratic party, however an overwhelming consensus of credible reporting may suffice.
Resolver
0x2F5e3684c...Incumbent Senator Chris Coons commands overwhelming trader consensus at 93.5% to win Delaware's Democratic Senate primary on September 15, 2026, reflecting his established record, 2020 reelection victory with 59% of the vote, and incumbency advantages in the reliably blue state. Challenger Christopher Beardsley, a Democratic socialist and former HUD analyst who announced his bid in December 2025, holds 5.4% with limited visibility, fundraising, or endorsements to date, and no other candidates have emerged. Absent recent polling shifts or catalysts in the past month, markets price in low upset risk; realistic challenges would require a Coons scandal, Beardsley momentum surge, or high-profile late entrant before the filing deadline.
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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