Incumbent Senator Chris Coons commands 94% trader consensus in the Delaware Democratic Senate primary on September 15, 2026, reflecting his strong incumbency advantage in a reliably Democratic state where he won re-election in 2020 with 59% amid minimal opposition. Challenger Christopher Beardsley, a leftist candidate who announced in December 2025, holds just 4%, underscoring the lack of competitive polling, fundraising, or endorsements to threaten Coons. No major developments have emerged in the past 30 days, with the July 14 filing deadline looming as the next catalyst for potential late entrants. Scenarios like a high-profile progressive challenger, scandal, or intraparty rift over issues such as foreign policy could shift odds, though historical primary base rates favor incumbents heavily.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$10,386 Vol.
$10,386 Vol.
Chris Coons
94%
Christopher Beardsley
5%
$10,386 Vol.
$10,386 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 94% trader consensus in the Delaware Democratic Senate primary on September 15, 2026, reflecting his strong incumbency advantage in a reliably Democratic state where he won re-election in 2020 with 59% amid minimal opposition. Challenger Christopher Beardsley, a leftist candidate who announced in December 2025, holds just 4%, underscoring the lack of competitive polling, fundraising, or endorsements to threaten Coons. No major developments have emerged in the past 30 days, with the July 14 filing deadline looming as the next catalyst for potential late entrants. Scenarios like a high-profile progressive challenger, scandal, or intraparty rift over issues such as foreign policy could shift odds, though historical primary base rates favor incumbents heavily.
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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