2026 United States Senate election in Colorado

Nov 3, 2026

IncumbentJohn Hickenlooper Democrat

General election

November 3, 2026

John Hickenlooper Democrat Incumbent
incumbent U.S. senator
Mark Baisley Republican
state senator from the 4th district (2023–present) (previously ran for governor)

Independents:

Primaries

Democratic primary

June 30, 2026Results 895,336 votes

✓John Hickenlooper Incumbent52.8% 472,864
incumbent U.S. senator
Julie Gonzales47.2% 422,472
state senator from the 34th district (2019–present)
Jessica Williams
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Karen Breslin
college professor, candidate for U.S. Senate in 2022, and candidate for in 2024

Republican primary

June 30, 2026Results 445,343 votes

✓Mark Baisley100.0% 445,343
state senator from the 4th district (2023–present) (previously ran for governor)
Amanda Calderon
business owner
George Markert
AI strategic advisor
Janak Joshi
former state representative from the 16th district (2011–2017) and candidate for Colorado's 8th congressional district in 2024

Also on the ballot:

Sean Pond

About 2026 United States Senate election in Colorado

2026 United States Senate election in Colorado — 18 candidates tracked, election day November 3, 2026, with primary and general stages, results, and related…

This race-level view follows one contest through its candidates and election stages, with dates and results kept alongside links to the people and other races in the same jurisdiction.