Colorado Voters Will Decide Senate Seat This November
Incumbent John Hickenlooper faces five challengers in the upcoming U.S. Senate race this November.
Updated on Sept. 25, 2026 in Elections
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Colorado voters will head to the polls this November to determine the outcome of the U.S. Senate election. The incumbent, John Hickenlooper, is seeking a second term while facing a field of five challengers.
Why it matters
The contest decides one of Colorado's two U.S. Senate seats, a critical position that influences federal representation and legislative priorities for the state.
Voters will decide on one U.S. Senate seat out of the two total seats allocated to Colorado. Candidate Robert Chew has contributed over $1 million of his personal wealth to his campaign, while five candidates are challenging the incumbent.
The players
John Hickenlooper
He is the current U.S. Senator for Colorado and a former governor and mayor of Denver.
Mark Baisley
He is a Republican candidate for the U.S. Senate who previously served in the Colorado state house and Senate.
Robert Chew
He is a candidate for the U.S. Senate from Boulder who has self-funded his campaign with over $1 million.
Julie Gonzales
She is a politician who unsuccessfully challenged the incumbent in the summer 2026 primary election.
The details
Incumbent John Hickenlooper, who previously served as governor and mayor of Denver, secured his spot on the ballot after defeating Julie Gonzales in the summer 2026 primary. He is being challenged by Republican Mark Baisley and four other candidates in the final race.
Timeline
Mark Baisley won a state house seat in 2018.
John Hickenlooper defeated Corey Gardner in 2020.
Mark Baisley was elected to the Colorado Senate in 2022.
Hickenlooper defeated Gonzales in the primary in summer 2026.
Colorado voters decide the U.S. Senate race in November 2026.
Political Context
The upcoming Colorado election follows the pattern of regular legislative cycles established by the U.S. Constitution's provisions for biennial Senate elections. Opposition parties and advocacy groups often focus on these cycles to challenge incumbent platforms and push for legislative change.
The outcome of this election will directly determine who represents Colorado's interests in federal legislative debates and policy making. Citizens should prepare to review candidate platforms as this race determines the trajectory of future state-level regulation and federal funding.
The takeaway
Voters should evaluate candidate positions on major issues, as this election determines who will represent the state in the U.S. Senate for the next term. Keeping track of campaign finance and policy platforms is essential for making an informed choice at the ballot box this November.
Further reading
For more information on the upcoming contests, visit the Colorado Elections section.
Source note: This article includes information reported by Colorado Public Radio.
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