By BallotWire
06/30/2026
The Wire: Colorado Democrats nominated Phil Weiser for governor and John Hickenlooper for reelection while a 29-year-old democratic socialist toppled 15-term U.S. Rep. Diana DeGette in Denver.
Why it counts: The night captured the Democratic Party's internal fight in miniature. Voters kept two familiar statewide figures atop the ticket but sent an unmistakable warning to long-tenured incumbents that seniority is no longer a shield.
The margin: Three races, three outcomes.
Governor: Attorney General Phil Weiser beat U.S. Sen. Michael Bennet 55% to 45%, positioning himself to succeed term-limited Gov. Jared Polis.
U.S. Senate: Sen. John Hickenlooper, 74, defeated progressive state Sen. Julie Gonzales 57% to 43%.
1st Congressional District: First-time candidate Melat Kiros unseated DeGette in a three-way race, taking 49% to the incumbent's 44%, with CU Regent Wanda James at about 7%.
The fine print: Weiser closed the governor's race by casting himself as the more forceful check on the Trump administration than Bennet, an early favorite. In the 1st District, Kiros rode a surge of Democratic Socialists of America energy and small-dollar volunteer muscle to overcome millions in outside spending aimed at tying her to the group's most controversial positions.
On the record: Denver voters, Kiros told supporters, "sent a clear message: We will not wait."
The counter: DeGette, first elected in 1996, ran on seniority and a record on abortion rights and health care, warning that a chaotic moment was no time to gamble on an untested newcomer. Gonzales pressed a similar generational-change case against Hickenlooper, faulting him for backing several Trump Cabinet nominees. Neither argument held.
The backdrop: Kiros's win extends a run of left-wing primary upsets, coming a week after Democratic Socialists knocked off two House Democrats in New York. DeGette became the seventh House member to lose renomination this cycle and the third in seven days. Kiros is now poised to become the first Black woman to represent Colorado in Congress.
Looking ahead: In the solidly blue state, all three Democrats enter November as favorites. Weiser faces the eventual GOP gubernatorial nominee, Hickenlooper draws Republican state Sen. Mark Baisley, and Kiros is heavily favored to hold the Denver-based 1st District.