Attorney General Phil Weiser (D-CO) defeated Sen. Michael Bennet (D-CO) in the Colorado Democratic primary for governor on June 30, 2026 [1].
The result marks a significant shift in state leadership, as a long-serving federal lawmaker lost to a state official in a high-stakes primary.
Weiser secured 54.7 percent of the vote [2], while Bennet received 45.3 percent [3]. Bennet gave a concession speech following projections released shortly before 8 p.m. on Tuesday [1].
Bennet has served in the U.S. Senate for 17 years [4]. During the campaign, he was frequently portrayed as a Washington insider, a narrative that contrasted with Weiser's profile as the state's top legal officer.
Financial reports indicate that Weiser raised more money and spent more than Bennet throughout the race [5]. The campaign focused on the necessity of defending Colorado against President Donald Trump [5].
While some reports contained conflicting names regarding the defeated senator, verified results confirm Bennet was the candidate defeated by Weiser in this contest [2].
Weiser now moves forward as the Democratic nominee for governor, carrying the momentum of a campaign that outspent its primary opponent [5].
“Phil Weiser secured 54.7 percent of the vote”
The victory for Phil Weiser suggests that Colorado Democratic primary voters prioritized state-level executive experience and aggressive fundraising over federal seniority. By successfully framing Sen. Michael Bennet as a 'DC insider,' Weiser tapped into a sentiment that favors local leadership as the primary bulwark against federal administration policies under Donald Trump.
