Socialism goes west as DSA-backed challenger ousts longtime Democrat

Rep. Diana DeGette, D-Colo., a 30-year incumbent, lost to a Democratic Socialists of America (DSA)-backed challenger in a high-profile primary on Tuesday evening.

Melat Kiros, a 29-year-old socialist, defeated DeGette in a Democratic primary for a deep-blue House seat anchored in Denver, according to The Associated Press, scoring a major victory for the socialist left on Tuesday evening.

The DSA had been aiming to cast DeGette’s loss as evidence of its growing momentum after a slate...