Trader consensus on Polymarket favors Michael Katz at 56% to win Delaware's Republican U.S. Senate primary on September 15, 2026, propelled by his overwhelming 82% endorsement from delegates at the Delaware GOP state convention last weekend, signaling strong party unity behind the physician and former state senator who switched from Democrat to Republican. This recent backing positions Katz as the preferred nominee to challenge incumbent Democrat Chris Coons in the deep-blue state, where independents and moderate voters could prove pivotal. John Shulli trails at 34.5%, buoyed by endorsements from General Michael Flynn and former GOP chair Julianne Murray, leveraging his Army colonel background and DoD experience, though lacking comparable institutional support. With low early polling, the race remains fluid ahead of summer campaigning.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedDelaware Republican Senate Primary Winner
Delaware Republican Senate Primary Winner
$32,195 Vol.
$32,195 Vol.
John Shulli
32%
Michael Katz
65%
$32,195 Vol.
$32,195 Vol.
John Shulli
32%
Michael Katz
65%
If no 2026 Delaware Republican 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 Republican party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Feb 25, 2026, 6:16 PM ET
Resolver
0x69c47De9D...If no 2026 Delaware Republican 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 Republican party, however an overwhelming consensus of credible reporting may suffice.
Resolver
0x69c47De9D...Trader consensus on Polymarket favors Michael Katz at 56% to win Delaware's Republican U.S. Senate primary on September 15, 2026, propelled by his overwhelming 82% endorsement from delegates at the Delaware GOP state convention last weekend, signaling strong party unity behind the physician and former state senator who switched from Democrat to Republican. This recent backing positions Katz as the preferred nominee to challenge incumbent Democrat Chris Coons in the deep-blue state, where independents and moderate voters could prove pivotal. John Shulli trails at 34.5%, buoyed by endorsements from General Michael Flynn and former GOP chair Julianne Murray, leveraging his Army colonel background and DoD experience, though lacking comparable institutional support. With low early polling, the race remains fluid ahead of summer campaigning.
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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