Michael Katz holds a strong lead in the Delaware Republican U.S. Senate primary, scheduled for September 15, 2026, following his endorsement by the state Republican Party at its convention via an 82% vote. As a former Democratic state senator and physician now seeking the nomination, Katz benefits from party organizational support and a focus on coalition-building and electability against incumbent Democrat Chris Coons. John Shulli, a retired U.S. Army colonel and War College instructor emphasizing government accountability and energy policy, trails despite slightly higher reported fundraising through June. The party backing and limited field have consolidated trader consensus around Katz ahead of the primary vote.
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
$34,497 Vol.
$34,497 Vol.

Michael Katz
88%

John Shulli
12%
$34,497 Vol.
$34,497 Vol.

Michael Katz
88%

John Shulli
12%
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, scheduled for September 15, 2026, following his endorsement by the state Republican Party at its convention via an 82% vote. As a former Democratic state senator and physician now seeking the nomination, Katz benefits from party organizational support and a focus on coalition-building and electability against incumbent Democrat Chris Coons. John Shulli, a retired U.S. Army colonel and War College instructor emphasizing government accountability and energy policy, trails despite slightly higher reported fundraising through June. The party backing and limited field have consolidated trader consensus around Katz ahead of the primary vote.
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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