Michael Katz holds a commanding lead in the Delaware Republican Senate primary due to securing the party's official endorsement at its April 2026 convention, which consolidated support among delegates and aligned activists ahead of the September 15 primary. This institutional backing, combined with Katz's prior experience as a state senator and his recent party switch, has shaped trader consensus around his nomination path. John Shulli, an Army veteran and the sole remaining challenger, has raised competitive funds but lacks comparable party infrastructure or endorsements. With the primary date fixed and limited additional filing activity reported, market pricing reflects the low likelihood of a late upset in this low-turnout contest.
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
$34,484 Vol.
$34,484 Vol.

Michael Katz
89%

John Shulli
12%
$34,484 Vol.
$34,484 Vol.

Michael Katz
89%

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 commanding lead in the Delaware Republican Senate primary due to securing the party's official endorsement at its April 2026 convention, which consolidated support among delegates and aligned activists ahead of the September 15 primary. This institutional backing, combined with Katz's prior experience as a state senator and his recent party switch, has shaped trader consensus around his nomination path. John Shulli, an Army veteran and the sole remaining challenger, has raised competitive funds but lacks comparable party infrastructure or endorsements. With the primary date fixed and limited additional filing activity reported, market pricing reflects the low likelihood of a late upset in this low-turnout contest.
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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