Colorado Primary Election
Tuesday, June 30, 2026 · 39 days away
U.S. House, U.S. Senate, Governor, statewide offices
What’s being decided
A primary election determines which candidates advance to the November general election. Voters in each party select their nominee, and the winners face each other in the fall.
Colorado holds an semi-closed primary — registered party members and unaffiliated voters may participate.
Candidates
U.S. Senate
Democratic · Incumbent since 2009
Michael Bennet has represented Colorado in the U.S. Senate since 2009, when he was appointed to the seat. Before serving in the Senate, he was Superintendent of Denver Public Schools. He ran briefly for the Democratic presidential nomination in 2020.
Voter information
Registration deadline
October 26, 2026 (8 days before the November 3 general)
You can register and vote on Election Day at your polling place.