Delaware US Senate 2026
Election day is November 3, 2026. A statewide contest in Delaware.
Who is favoured in Delaware US Senate?
Run the forecaster to pull current reporting on this race, score it issue by issue, and see who it favours.
What the Delaware US Senate election decides
The Senate confirms federal judges and cabinet officers, ratifies treaties, and can stop legislation the House passes. With a six-year term and a hundred-member chamber, a single seat is a larger share of the institution than any House district, which is why Senate races draw national money into state contests.
Each state sends two senators regardless of population, so this seat carries the same weight as California's or Wyoming's. Delaware voters fill it alongside all 1 of the state's House seat, and a Senate term runs six years, spanning two future Congresses and, in this case, the next presidential election.
How Delaware votes
Delaware's small size belies its corporate significance as the legal home of much of American business. Its politics are anchored by New Castle County's suburbs, with a more conservative south, and Democrats have won statewide consistently in recent years. That backdrop is the ground any Delaware campaign fights on, and it is what the Electorate HQ simulation reads first when it weighs a ticket's platform against this contest.
About this race
The 2026 United States Senate election in Delaware was held on November 3, 2026, to elect a member of the United States Senate to represent the state of Delaware. Democratic incumbent Chris Coons was re-elected to a third full term, defeating Republican former state senator Michael Katz.
Primary elections took place on September 15. Coons won the Democratic nomination with 78% of the vote against minimal opposition. Katz, who served as a Democrat in the state Senate, won the Republican nomination with 77.3% of the vote against U.S. Army War College instructor John Shulli. He held onto Kent County, a swing county that voted against him in 2010 and 2014 before flipping in 2020. He also flipped the reliably Republican Sussex County, making it the first time the county voted for a Democrat in a statewide race since the 2012 races for Senate, the at-large House seat, and governor.
Democratic primary
Latest coverage of the Delaware US Senate race
Delaware election 2026: What to know about the U.S. Senate race between Chris Coons and Mike KatzCoons Advances to General Election in Solid Blue Delaware Senate RaceLive results: Delaware U.S. Senate primary election 2026Delaware 2026 Senate election preview: Coons seeks fourth term against former state DemocratResults from the September 15th Primary in DelawareLive Results: Delaware midterm primariesChris Coons defeats challengers in Delaware’s Democratic primary for U.S. SenateKatz defeats Shulli in Delaware’s Republican primary election for U.S. SenateThe rest of the Delaware ballot
Every Delaware House district, the counties inside each one, and an address lookup that resolves your exact districts are on the Delaware state page.
Analysis covering Delaware
Six states have exactly one representative, and they are not alike
Alaska, Delaware, North Dakota, South Dakota, Vermont and Wyoming each elect a single at-large member. The largest is 266 times the smallest.
The 2026 Senate map covers 62% of the country and 70% of the states
Thirty-five of fifty states vote for Senate this year. Weighted by people rather than states the share drops, and that gap is the design of the chamber.