Colorado voters in this year’s primary elections will decide which candidates advance to the November ballot. Primaries determine each party’s nominees for federal, statewide, and local offices.
Colorado’s primary elections will determine which candidates move on to the November general election ballot. Voters are choosing party nominees for federal, statewide, and local races.
Key Dates:
- June 8: Ballots mailed to voters.
- June 8: Last day for voters affiliated with a political party to change or withdraw their affiliation if they wish to vote in a different party’s primary election.
- June 22: Recommended last day for voters to return ballots by mail.
- June 30: Primary Election Day, polls are open from 7 a.m. to 7 p.m. Ballots must be received by 7 p.m. on Election Day.
How Colorado Primaries Work
Colorado has open primaries:
- Registered Democrats vote in the Democratic primary.
- Registered Republicans vote in the Republican primary.
- Unaffiliated voters will be sent ballots for both the Democratic and Republican primaries, but they may only vote on one ballot. Colorado also allows same-day voter registration on Election Day.
Statewide Races:
Governor
Democratic Party:
- Michael Bennet
- Michael Bennet has served in the U.S. Senate since 2009.
- Phil Weiser
- Phil Weiser has served as Colorado’s Attorney General for the past 8 years.
Republican Party:
- Scott Bottoms
- Scott Bottoms is a pastor and serves as the Colorado State Representative for House District 15.
- Barbara Kirkmeyer
- Barbara Kirkmeyer is a former Weld County commissioner and serves as the Colorado State Representative for House District 23.
- Victor Marx
- Victor Marx is a Marine Corps veteran and runs All Things Possible Ministries, a nonprofit in Colorado Springs.
U.S. Senate
Democratic Party:
- John Hickenlooper (Incumbent)
- John Hickenlooper has served as the mayor of Denver, the governor of Colorado, and is running for a second term as U.S. senator.
- Julie Gonzales
- Julie Gonzales has served in the State Senate, representing the 34th district in the City and County of Denver, since 2019.
Republican Party:
- Mark Baisley (unopposed)
- Mark Baisley has represented Colorado’s 4th Senate District, which includes Douglas County and Castle Rock, since 2023. Before joining the State Senate, he served House District 39, representing Teller County and parts of Douglas County, beginning in 2019.
Attorney General
Democratic Party:
- Hetal Doshi
- Hetal Doshi is a former Deputy Assistant Attorney General at the U.S. Department of Justice, Antitrust Division.
- Michael Dougherty
- Michael Dougherty has served as the Boulder County District Attorney since 2018.
- Jena Griswold
- Jenna Griswold has served as Secretary of State in Colorado since 2019.
- David Seligman
- David Seligman has served as the Executive Director of the nonprofit law firm Towards Justice since 2018.
Republican Party:
- Michael Allen
- Michael Allen is an American lawyer who serves as the current District Attorney for the 4th Judicial District.
- David Willson
- David Willson is a retired U.S. Army attorney and cybersecurity consultant.
Secretary of State
Democratic Party:
- Jessie Danielson
- Jessie Danielson from Jefferson County has just finished a second term in the state Senate this year after serving two terms in the Colorado House.
- Amanda Gonzalez
- Amanda Gonzalez has served as the Jefferson County Clerk and Recorder since 2023. She served as Executive Director of Colorado Common Cause from 2018 to 2021.
Libertarian Party:
- Alex Astley
- Alex Astley is a Libertarian and an engineer from the Eastern Plains.
- Sean Vadney
- Sean Vadney from Highlands Ranch is an entertainment industry professional who would like to reform business registration.
Voting Resources
Colorado Secretary of State Elections Division
Voter Registration / Ballot Tracking
- Register or update registration
- Find drop boxes and polling places
- Track your ballot through BallotTrax
Here are more Colorado voter services.
