Progressive challenger unseats DeGette as Hickenlooper holds off Gonzales

A democratic socialist toppled Rep. Diana DeGette in Colorado’s 1st Congressional District on June 30, while John Hickenlooper turned back a progressive challenge in the state’s Democratic U.S. Senate primary. The two results delivered a split verdict on the Democratic establishment and showed that anti-incumbent anger was powerful enough to unseat one longtime House veteran, but not every sitting figure in Colorado.

Melat Kiros led DeGette 49 percent to 44 percent with 78 percent of the vote counted when the race was called. DeGette has held the Denver-based House seat since 1997, making the defeat one of the sharpest blows to Colorado Democrats’ old guard. Kiros’ win also gave progressive activists a prominent primary victory in a district that has been anchored for nearly three decades by one of the party’s most durable incumbents.

Hickenlooper’s race moved the other way. The former Denver mayor and Colorado governor defeated state Sen. Julie Gonzales with about 57 percent of the vote to 43 percent, after more than 560,000 ballots had been cast. The contest was called at about 7:36 p.m., and it underscored the continued strength of veteran Democrats who can still appeal to a broad primary electorate even as their party’s left flank presses for change.

The governor’s race added another layer of uncertainty to the night. Early results showed Attorney General Phil Weiser leading Sen. Michael Bennet in the Democratic primary, keeping the state’s top-ticket contests in motion even as the congressional and Senate races were being settled. Colorado Democrats have held both of the state’s U.S. Senate seats since 2020, a reminder that the party’s statewide map remains competitive enough to draw major figures into the fight.

Taken together, the primaries reflected the broader struggle inside the Democratic Party over how far left it should move and how much patience voters have for long-serving incumbents. Kiros’ victory showed that insurgent candidates can still break through against powerful names. Hickenlooper’s win showed that establishment figures are not being swept aside everywhere, even in a year when primary voters were willing to punish some of the party’s most familiar faces.