Coons Wins Fourth Term in Delaware Senate Race

Democrat Chris Coons defeated Republican Mike Katz to retain his U.S. Senate seat for another six-year term.

Updated on Nov. 4, 2026 in Elections

Bold flat-color editorial illustration of a plain civic building facade with a motionless flag under a grey sky, in deep navy and cream. — Democrat Chris Coons won a fourth term in the U.S. Senate on November 3, defeating Republican Mike Katz in Delaware's general election. AI Illustration. Upload story photo >

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Chris Coons won a fourth term in the U.S. Senate by defeating Republican Mike Katz in the Delaware general election on November 3. Multiple news outlets called the race shortly after polls closed at 8 p.m.

Why it matters

Coons's re-election extends his tenure in a seat he has held since 2010 and keeps the Delaware Senate delegation under Democratic control. The result reflects a broad Democratic margin in a state that has consistently favored the party in statewide federal races.

Coons's 78% share in the September primary compares with about 73% against Jessica Scarane in 2020, a gain of roughly 5 points. The source does not report his final general election percentage or Katz's total vote count.

The players

Chris Coons

A Democratic U.S. senator from Delaware who has served since 2010 and was first elected in a special election to replace Joe Biden.

Mike Katz

A former Delaware state senator and anesthesiologist who served in the state Senate from 2009 to 2013 and ran as the Republican nominee.

The details

Coons defeated Katz in the general election, with major outlets including The Associated Press, ABC News and CNN calling the race soon after polls closed. Katz, a former Delaware state senator and anesthesiologist, ran on lowering the cost of living and overhauling health care after previously running unsuccessfully as an independent in 2024.

2010: Coons won a special election to replace Joe Biden in the U.S. Senate.
2020: Coons defeated Republican Lauren Witzke in the general election.
2024: Katz ran unsuccessfully for Senate as an independent.
September 15, 2026: Coons received 78% in the Democratic primary.
November 3, 2026: Coons defeated Katz in the general election.

Political Context

Coons first took the seat in a 2010 special election to replace Joe Biden, and his 2026 win extends that tenure into a fourth term. Opposition from Katz centered on cost of living and health care, the policy areas where Republicans have pressed Coons during his service.

Coons will serve another six-year term in the U.S. Senate representing Delaware voters. Delaware's Senate delegation remains under Democratic control following the election.

The takeaway

Coons's re-election reflects sustained support for his tenure in a state where Democrats have long held statewide federal offices. Voters weighing future Senate races can track how incumbents and challengers frame cost of living and health care issues.