WILMINGTON, Delaware, March 19, 2026 — Dr. Mike Katz, a physician, business owner, and former Delaware State Senator, today officially filed to run as the Republican candidate for United States Senate in Delaware, entering the 2026 race against incumbent Democratic Senator Chris Coons.
Dr. Katz is a pediatric critical care anesthesiologist who has practiced medicine in Delaware for nearly three decades, beginning in 1996 when he was recruited from Boston Children's Hospital to A.I. duPont Hospital for Children. He and his wife Trish have been married for 39 years and raised their three children in Delaware.
"Delaware deserves a United States Senator who knows what it means to solve hard problems — not just talk about them," said Dr. Katz. "For 30 years I have cared for this state's most vulnerable patients, fought for commonsense reform in Dover, and built businesses that employ Delaware families. It is time to bring that record, and that sense of urgency, to Washington."
Dr. Katz previously served in the Delaware State Senate, where he introduced legislation on term limits, lobby reform, government transparency, corporate tax repeal, and the creation of the Delaware Health Information Network (DHIN). He ran as a Democrat, was elected in a majority-Republican district, and has since re-registered as a Republican.
Dr. Katz's campaign focuses on breaking what he calls Delaware's "one-party stranglehold," reforming the healthcare system, restoring fiscal accountability, supporting Delaware's military and veterans, and returning servant leadership to the U.S. Senate.
The Republican primary is set for September 15, 2026. The general election is November 3, 2026.
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About Dr. Mike Katz Dr. Mike Katz is a physician, business owner, and former Delaware State Senator running for U.S. Senate in 2026. A pediatric critical care anesthesiologist with more than 35 years in healthcare and policy, he has spent his career serving Delaware families — in the operating room, in the statehouse, and in his community. Learn more at katz2026.com.