What to watch for in Colorado tonight: From the Politics Desk

From the Politics DeskWhat to watch for in Colorado tonight: From the Politics DeskPlus, wrapping up a jam-packed final day of the Supreme Court’s term. Listen to this article with a free profile00:0000:00Add NBC News to GoogleKornacki: Colorado incumbent Rep. DeGette in ‘serious jeopardy’ as she faces far-left challenger08:33Get more newsLiveonShareAdd NBC News to GoogleJune 30, 2026, 5:45 PM EDTBy The Politics DeskWelcome to From the Politics Desk, a daily newsletter that brings you the NBC News Politics team’s latest reporting and analysis from the White House, Capitol Hill and the campaign trail.Limited time: Save 25% on NBC News subscriptionGet exclusive reporting, live Q&As and ad-free reading.In today’s edition, Steve Kornacki previews the Colorado primaries, the next test for establishment Democrats. Plus, we wrap up all the fallout from the last day of the Supreme Court’s term. Sign up to receive this newsletter in your inbox every weekday here.— Adam WollnerWhat to watch for in Colorado tonightAnalysis by Steve KornackiAnother Tuesday, another set of endangered incumbents. The setting this week is Colorado, where both U.S. senators and a long-tenured House member confront Democratic primary threats.Arguably the most vulnerable is Rep. Diana DeGette, who has represented the Denver-based 1st District since 1997. She is being opposed by Melot Kiros, who has the backing of the Democratic Socialists of America and has made criticism of Israel central to her campaign. Insurgencies like hers have succeeded in several other urban districts this year, most notably in New York City just last week. Demographically, the 1st District, with a population heavy with young, educated progressives, would seem to be fertile ground for Kiros. Sen. Michael Bennet is also clearly in trouble as he bids to become governor. His opponent, state Attorney General Phil Weiser, has a conventional political background but has leaned into the apparent leftward energy in the party.The...