Michael Katz holds a strong lead in the Delaware Republican U.S. Senate primary due to formal party backing, including the Delaware Republican Party’s April 2026 convention nomination and endorsements from former U.S. Attorney Julianne Murray and state legislators. His background as a former Democratic state senator, physician, and 2024 Independent Senate candidate supports coalition-building efforts in a heavily Democratic state. John Shulli, an Army colonel and War College instructor, emphasizes military leadership and policy priorities such as energy but trails in organizational support. The September 15 primary remains the key resolution trigger, with Katz positioned ahead in trader consensus reflecting these structural advantages.
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
$35,356 Vol.
$35,356 Vol.

Michael Katz
86%

John Shulli
14%
$35,356 Vol.
$35,356 Vol.

Michael Katz
86%

John Shulli
14%
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...Michael Katz holds a strong lead in the Delaware Republican U.S. Senate primary due to formal party backing, including the Delaware Republican Party’s April 2026 convention nomination and endorsements from former U.S. Attorney Julianne Murray and state legislators. His background as a former Democratic state senator, physician, and 2024 Independent Senate candidate supports coalition-building efforts in a heavily Democratic state. John Shulli, an Army colonel and War College instructor, emphasizes military leadership and policy priorities such as energy but trails in organizational support. The September 15 primary remains the key resolution trigger, with Katz positioned ahead in trader consensus reflecting these structural advantages.
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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