Anti-establishment progressive candidates scored key victories in Democratic primary elections in the US state of Colorado on Tuesday, defeating several established office-holders.

Colorado's Democratic primaries reflect a debate over the party's future. Voters are deciding between younger, further-left candidates and more traditional Democrats.

Colorado's primary has Democratic incumbents fighting off challenges ranging from progressive newcomers to state lawmakers seeking higher office.

Veteran Democrats running for Senate, governor and House are facing another round of insurgent challengers Tuesday.

One week after Democratic insurgent victories in New York, the focus is now moving to Colorado, where challenges in a trio of races are threatening candidates backed by the party…

Democratic incumbents realize they could be next after Melat Kiros cruised to victory in Colorado.

Democrats nominated their candidate to try to unseat a Republican House member and tapped the state's attorney general as a frontrunner for governor.

What the insurgent wave in Democratic primaries really proves is this: It’s no longer enough to be a liberal who votes the right way most of the time.

Giro progresista en Colorado. Los votantes de las primarias demócratas celebradas este martes ha decidido entre candidatos más jovenes y progresistas o seguir apostando por los…

Democrats' generational war continued, as Sen. John Hickenlooper won, Sen. Michael Bennet lost, and socialist Melat Kiros upsets Rep. Diana DeGette.

Progressives had a big night in Colorado's primaries Tuesday, led by Melat Kiros, who was poised to unseat 15-term incumbent Rep. Diana DeGette.

Democratic socialist Melat Kiros beat Rep. Diana DeGette in a Colorado primary Tuesday, a stunning victory for the first-time candidate against a nearly 30-year incumbent

The anti-establishment wave surging through the Democratic Party reached Colorado on Tuesday, when democratic socialist Melat Kiros dislodged 15-term Rep. Diana DeGette, and state…

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“We won tonight, but this is also something so much bigger than this moment," said Kiros, a 29-year-old democratic socialist.

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Melat Kiros unseated a 30-year incumbent in Colorado's primary. Brad Lander winning NY-10 primary by more than 30% at 92.8% YES.

La socialista democrática Melat Kiros venció a la veterana representante Diana DeGette en Denver, mientras Hickenlooper resistió el embate de la izquierda en el Senado y Manny…

Democratic socialists struck another blow against the Democratic establishment on Tuesday in Colorado, where 29-year-old Melat Kiros is projected to win against incumbent Rep.…

Socialists caught the country’s eye in New York last week, when several candidates swept primaries. Their victories have spread to Colorado.

Melat Kiros defeated Diana DeGette, who has been in office for as long as the 29-year-old Kiros has been alive.