Michael Katz leads the Delaware Republican Senate primary market at 72% because traders weigh his prior elected experience as a state senator and 2024 statewide independent candidacy as stronger assets for name recognition and organizational support ahead of the September 15 primary. John Shulli trails at 19% despite higher fundraising totals, reflecting his more recent entry and lack of prior elected office. No major new endorsements, polls, or campaign events have shifted positioning in recent weeks, leaving the gap driven by Katz’s established Delaware profile versus Shulli’s military and academic background.
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
$33,287 Vol.
$33,287 Vol.
Michael Katz
87%
John Shulli
13%
$33,287 Vol.
$33,287 Vol.
Michael Katz
87%
John Shulli
13%
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 leads the Delaware Republican Senate primary market at 72% because traders weigh his prior elected experience as a state senator and 2024 statewide independent candidacy as stronger assets for name recognition and organizational support ahead of the September 15 primary. John Shulli trails at 19% despite higher fundraising totals, reflecting his more recent entry and lack of prior elected office. No major new endorsements, polls, or campaign events have shifted positioning in recent weeks, leaving the gap driven by Katz’s established Delaware profile versus Shulli’s military and academic background.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions