Immediate Answer: In a seismic political shift for Colorado’s 1st Congressional District, progressive challenger Melat Kiros has defeated 15-term incumbent Representative Diana DeGette in the Democratic primary held on June 30, 2026. Kiros, a democratic socialist, successfully harnessed local calls for generational change and more aggressive policy stances, ending DeGette’s nearly 30-year tenure representing Denver in the U.S. House. What Happened: The primary election on Tue
