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2026 United States Senate election in Colorado
The 2026 United States Senate election in Colorado will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Colorado . Incumbent Democratic senator John Hickenlooper , who was first elected in 2020 , has stated that he plans to run for re-election. He has also said that this will be his last campaign for Senate.[ 1]
Campaign finance reports as of June 30, 2025
Candidate
Raised
Spent
Cash on hand
Karen Breslin (D)
$13,012
$6,853
$6,159
John Hickenlooper (D)
$4,778,005
$3,648,740
$2,771,347
Source: Federal Election Commission [ 5]
George Markert, AI strategic advisor[ 6]
Campaign finance reports as of June 30, 2025
Candidate
Raised
Spent
Cash on hand
George Markert (R)
$98,564
$40,819
$57,745
Source: Federal Election Commission [ 5]
Independent candidates [ edit ] Clinton Roosevelt Dale[ 8]
Joshua William Kuebler[ 9]
^ a b Sarles, Jesse (August 22, 2024). "Sen. John Hickenlooper says his re-election bid in two years will be his last campaign for Senate" . CBS News . Retrieved December 6, 2024 . ^ "Breslin 2026 U.S. Senate Campaign Seeks Volunteers" (Press release). February 12, 2025. Retrieved February 19, 2025 – via University of Colorado Denver .^ "- AIPAC Political Portal" . candidates.aipacpac.org . Retrieved April 28, 2025 .^ "GIFFORDS PAC endorses Colorado Sen. John Hickenlooper for reelection" . GIFFORDS . July 28, 2025. Retrieved July 29, 2025 .^ a b "2026 Election United States Senate - Colorado" . fec.gov . Federal Election Commission . Retrieved April 23, 2025 .^ a b c Paul, Jesse (July 1, 2025). "John Hickenlooper is up for reelection. Colorado Republicans don't really have a candidate to challenge him" . The Colorado Sun . Retrieved July 1, 2025 . ^ Luning, Ernest (July 8, 2025). "Republican Janak Joshi files to challenge John Hickenlooper in Colorado's 2026 US Senate race" . Colorado Politics . Retrieved July 9, 2025 . ^ "Statement of Candidacy" . March 2, 2023. Retrieved April 16, 2025 .^ "Statement of Candidacy" . August 1, 2024. Retrieved April 16, 2025 .^ "Senate Ratings" . Inside Elections . Retrieved January 14, 2025 .^ "2026 CPR Senate Race Ratings" . Cook Political Report . Retrieved February 11, 2025 .^ "2026 Senate ratings" . Sabato's Crystal Ball . Retrieved February 13, 2025 .^ "2026 Senate Forecast" . Race to the WH . Retrieved March 19, 2025 .
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