Denver Makes Primary History and Leads the Progressive Pack

D1 candidate Melat Kiros' supporters cheer as a second round of election results dropped in her favor, widening her lead over incumbent Diana DeGette. June 30, 2026.
Photo: McKenzie Lange/CPR News

Denver Democratic primary voters changed the direction of Colorado politics. Across the board they provided progressive muscle to local and statewide candidates. Denver’s 155,000 votes were 18% of the statewide vote.

• While John Hickenlooper won statewide (53%-47%), he lost the city he was mayor of to Julie Gonzales by 7 points, 54% to 47%.
• Michael Bennet, former Denver chief of staff and school superintendent, became the face of the corporate DC establishment and lost Denver to Phil Weiser 34% to 66% on his way to losing the election statewide by 13 points.
• Diane DeGette in her 7th Congressional election, did better than Bennet at 40% but lost to Melat Kiros, a 29-year-old socialist, by 13 points.
• Denver’s Progressive voters gave Amanda Gonzales, the socialist-leaning (former DSA member) running for Secretary of State, a 67% margin, helping her to a 28 point win.

Millennials/Gen Z Getting into Politics

Nikita Valdez jumps while cheering after the first report of the election results show Democratic congressional candidate Melat Kiros in the lead during a primary election night watch party at The Broadway, Tuesday, June 30, 2026, in Denver. (AP Photo/Rebecca Slezak)

Millennials, the demographic cohort starting in 1981 and now between 30 and 45 years old, are overtaking the dominant Baby Boom that is entering their 70’s and 80’s. When combined with younger Generation Z (15-29), they together have 40 percent of the population, more than a third of the vote known for their digital fluency and social activism.

The Baby Boomers came to political prominence in Colorado in the late 1970’s and 1980’s. Gary Hart, Tim Wirth, Sam Brown, and Pat Schroeder, (anti-war, was elected at 32 years old in 1922) were all strongly supported by Baby Boom voters. In Denver, Federico Pena, the perceived Mamdani of the era, became mayor in 1983, beating the establishment candidates.

Polling in the 2026 Democratic primary reflected the new generation's power and preferences. They are more diverse than the over-45 generations, more liberal, more anti-establishment and they are voting for change. They preferred Phil Weiser and not Diane DeGette. They helped new candidates win legislative primaries and the competitive 8th congressional district insurgent candidate.