Ex-Democrat Mike Katz Wins GOP Primary For Delaware Senate Seat
Mike Katz won Delaware's Republican U.S. Senate primary on Tuesday, September 15, 2026, securing the GOP nomination to challenge three-term Democratic Sen. Chris Coons in the November 3 general election.[1]
Katz defeated retired Army colonel John Shulli in the two-way GOP contest.[1] A pediatric anesthesiologist and business owner, Katz previously served as a Democratic state senator from 2008 to 2012.[1]
Katz served in the Delaware state Senate from 2008 to 2012 as a Democrat before pursuing the GOP nomination.[1] Republicans have not won a U.S. Senate race in Delaware since William Roth's 1994 re-election, highlighting the uphill challenge Katz faces against Coons.[1]
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📌 Key Facts
- On Tuesday, September 15, 2026, Mike Katz won Delaware's Republican U.S. Senate primary.
- Katz defeated retired Army colonel John Shulli in a two-way GOP contest.
- Katz will face three-term Democratic Sen. Chris Coons in the November 3 general election.
- Katz is a pediatric anesthesiologist, business owner and former Democratic state senator who served from 2008 to 2012.
- Republicans have not won a U.S. Senate race in Delaware since William Roth’s 1994 re-election.
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September 16, 2026