Overview
- Kiros defeated 15-term Rep. Diana DeGette in the Democratic primary for Colorado’s 1st District, a result called late Tuesday by the Associated Press and confirmed by multiple outlets.
- The 29-year-old challenger is an Ethiopia-born lawyer and PhD student who ran as a democratic socialist on Medicare for All, abolishing ICE, a U.S. arms embargo on Israel, rejecting corporate PAC money, and affordability policies.
- National progressive figures and groups, including Sen. Bernie Sanders, the DSA and Justice Democrats, backed Kiros and helped fund her campaign while outside groups also spent heavily to defend DeGette.
- Because the Denver-centered district is safely Democratic, Kiros enters November as the heavy favorite to win the general election and likely to join the next House as a freshman aligned with the party’s left flank.
- The result follows recent progressive primary wins in New York and sharpens an intra‑party debate over generational change, Israel and Gaza policy, and whether insurgent candidates help or hurt Democrats’ fall electability.