Pennsylvania wrote the founding documents. It has spent 250 years arguing over what they mean. In courtrooms and committee rooms, Harrisburg and Philadelphia are fighting over the same questions the ...

Rep. Alexandria Ocasio-Cortez is throwing her support behind former Wayne County health director Abdul El-Sayed in the hotly contested Michigan Democratic Senate primary.

Michael Bennet, Diana DeGette, and the Democratic old guard all learned the same painful lesson on Tuesday: Voters want fighters, and they’re ready to punish any incumbent exhibiting a whiff of ...

Incumbents in Congress are having a challenging primary season, with Colorado's Diana DeGette being the latest member to lose ...

DeGette, who has served in Congress for three decades, lost her primary to the 29-year-old Kiros, NBC News projects.

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

Democratic socialist Melat Kiros defeated Rep. Diana DeGette in Denver on Tuesday night, the latest in a string of results ...

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

The two Republicans seeking the party’s nomination in this year’s Arizona Attorney General’s race are engaged in a heated ...

The most nationally resonating story of Colorado’s primary election was Melat Kiros’ defeat of 15-term U.S. Rep. Diana ...

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

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