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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2026/US Senate/Colorado
      2026 ForecastSafe D
      2026·US Senate·Colorado

      Colorado US Senate

      Incumbent
      DJohn Hickenlooper
      Senate Class 2

      Race Analysis

      Analysis coming soon.

      Updated 2026-02-18

      Candidates & Primaries

      Democratic Candidates

      John HickenlooperDIncumbent

      Junior senator from Colorado since 2021

      B3W-0L3 races
      Full profile →
      Democratic PrimaryPolymarket

      Will Anthony Zimpfer be the Democratic nominee for Senate in Colorado?

      Data from Polymarket prediction markets

      Republican Candidates

      TBDRRumored

      No major GOP challenger expected

      Republican PrimaryPolymarket

      Will Mark Baisley be the Republican nominee for Senate in Colorado?

      Data from Polymarket prediction markets

      State Demographics

      Colorado vs. National · Pop. 5.9M

      White (non-Hispanic)64.8%
      National: 57.4%
      Black4.0%
      National: 12.2%
      Hispanic/Latino22.5%
      National: 19.3%
      Asian3.3%
      National: 6.0%
      College Degree45.5%
      National: 35.6%
      Median Income$97,187
      National: $83,960
      Median Age37.9
      National: 39.1

      Seat History

      US Senate in Colorado(Class I)

      2022
      Michael BennetDEM
      D+14.6
      2020
      John HickenlooperDEM
      D+2.4
      2016
      Michael BennetDEM
      D+5.7
      2014
      Cory GardnerREP
      R+1.9
      2010
      Michael BennetDEM
      D+1.7
      2008
      Mark Emery UdallDEM
      D+10.3
      2004
      Ken SalazarDEM
      D+4.8
      2002
      Wayne AllardREP
      R+4.9
      1998
      Ben Nighthorse CampbellREP
      R+27.5
      1996
      Wayne AllardREP
      R+5.0
      1992
      Ben Nighthorse CampbellDEM
      D+9.1
      1990
      Hank BrownREP
      R+14.0
      1986
      Timothy WirthDEM
      D+1.6
      1984
      William L ArmstrongREP
      R+29.6
      1980
      Gary HartDEM
      D+1.6
      View all US Senate history for Colorado →

      Also in Colorado, 2026

      Governor
      Safe D      ← 2026 Forecast Overview
      ← 2026 Forecast OverviewColorado profileAll elections