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Senate race · 2026

Colorado Senate Race

Compare sourced candidate information for the November 3, 2026 U.S. Senate election. Check the state election office for the complete ballot and any qualified write-in candidates.

9 documented candidates · what each one campaigns on

John Hickenlooper

Democratic · Incumbent

Their record

Currently: U.S. Senator

John Hickenlooper previously served as Denver's mayor from 2003 to 2011 and as governor of Colorado from 2011 to 2019, before being elected to the U.S. Senate in 2020.

Campaign platform

  • Affordability

    He is running for reelection to fix the 'affordability emergency' and address the high cost of living.

    EconomySource
  • Healthcare Access

    As governor, he expanded healthcare to half a million Coloradans.

    HealthSource
  • Climate Change

    He supported the largest investment to fight climate change and, as governor, created the world's first methane regulations.

    EnvironmentSource
  • Bipartisan Collaboration

    He is running on a platform of bipartisan collaboration and finding common ground.

    DemocracySource
  • Gun Control

    He supported strong gun control laws in Colorado, taking on the NRA.

    JusticeSource

Mark Baisley

Republican

Currently: State Senator

Mark Baisley is a state senator in Colorado's 4th District and is running unopposed in the Republican primary for U.S. Senate.

Campaign platform

  • Patient-directed health care

    Supports expanded HSAs, price transparency and protecting rural hospitals.

    Health CareSource
  • Cut taxes and regulation

    Advocates lower federal taxes and fewer regulations to spur private-sector growth.

    EconomySource
  • Locally controlled infrastructure

    Supports disciplined infrastructure spending, faster permitting and Western Slope water protection.

    EconomySource
  • Legal immigration with vetting

    Supports continued legal immigration contingent on vetting and assimilation while opposing illegal entry.

    ImmigrationSource
  • Defend the Second Amendment

    Has publicly defended gun rights against federal legal challenges.

    Justice & Public SafetySource

Adam Withrow

Unity Party

Listed as a November 2026 U.S. Senate candidate by the election office.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Blake Huber

Libertarian Party

Listed as a November 2026 U.S. Senate candidate by the election office.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Bob Chew

Forward Party

Listed as a November 2026 U.S. Senate candidate by the election office.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Christopher Baum

Approval Voting Party

Listed as a November 2026 U.S. Senate candidate by the election office.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Donald Willoughby

Unaffiliated · Qualified write-in

Listed as a qualified write-in candidate by the election office. Write-in candidates do not appear as printed ballot choices.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Ryan Apelbaum

Republican Party · Qualified write-in

Listed as a qualified write-in candidate by the election office. Write-in candidates do not appear as printed ballot choices.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

Will Powers

Republican Party · Qualified write-in

Listed as a qualified write-in candidate by the election office. Write-in candidates do not appear as printed ballot choices.

Campaign platform

  • No campaign positions are documented in this guide yet. The candidacy source is linked below; no positions are inferred from party affiliation.

This is a sourced candidate guide, not a certified ballot. Confirm the full ballot, including any qualified write-in candidates, with the state election office .

Platform items are drawn from candidates’ own campaign materials and public reporting, summarised neutrally. They are what a candidate says they will do — not a judgement about whether they will do it. Once a candidate is serving in Congress, their record moves to the senator profiles.