Democratic Sen. Chris Coons of Delaware secured his party’s nomination on September 15 after defeating three primary challengers, setting up a November general election showdown with Republican Dr. Mike Katz.
Coons, who has served nearly three terms in the Senate, received 80.6% of the Democratic vote in the primary, according to unofficial results from the Delaware Department of Elections. His opponents—Mary Louve, Eric No-Trump Hansen, and Jeff Appelhans—conceded shortly after polls closed at 8 p.m., with the Associated Press and New York Times calling the race for Coons.
On the Republican side, Dr. Mike Katz won the GOP nomination with 75.6% of the vote, defeating John Shulli. Katz, a pediatric anesthesiologist and former Delaware state senator, will challenge Coons in the November 3 general election. Katz previously ran as an Independent in 2024 before registering as a Republican for the 2026 race.
Primary Outcomes and Campaign Dynamics
Coons’ victory was widely anticipated in Delaware, where he remains a prominent political figure. He first won the Senate seat in a 2010 special election to replace then-Vice President Joe Biden and has since won two full terms. His campaign emphasized gratitude to volunteers and grassroots donors, while avoiding direct commentary on his primary win in a social media post.
Katz, who served in the Delaware state Senate as a Democrat from 2008 to 2012, has framed his candidacy as a coalition-building effort. His campaign website highlights priorities such as lowering the cost of living, health care reform, job protection, and federal spending reduction. Katz described his shift to the Republican Party as an alignment with long-held principles rather than a change in political views.
Policy Positions and Political Context
Coons, a member of the Senate Foreign Relations Committee, has been a vocal supporter of Israel, a stance that has drawn criticism from progressive Democrats. He opposed two resolutions by Sen. Bernie Sanders in spring 2026 that sought to restrict military aid to Israel, including a measure to block the sale of military bulldozers and another targeting the sale of massive bombs. Coons was one of seven Democrats to vote against the first resolution and 11 Democrats against the second.
His opponents in the primary included E. No-Trump Hansen, a former business executive who changed his legal name to reflect opposition to former President Donald Trump. Hansen ran on a platform to curb presidential power, arguing that legislation was needed to restore checks and balances. He previously ran as a Republican in 2024 before switching to an independent bid.
General Election Outlook
Delaware has not elected a Republican to the U.S. Senate in over 30 years, making Coons the heavy favorite in the general election. Katz’s campaign has positioned him as a challenger capable of building a cross-party coalition to unseat the incumbent. The general election will take place on November 3, 2026.