Election Countdown: Colorado’s 3rd Congressional Race October 21, 2020 Race: Colorado’s 3rd Congressional District Key Cities: Pueblo, Grand Junction, Durango Matchup: Republican Lauren Boebert and Diane Mitsch Bush. The Race: The fight for Western Colorado will deliver a new member of Congress in 2020. Republicans nominee Lauren Boebert defeated current incumbent Scott Tipton in the primary. Considered a seat that leans Republican, Diane Mitsch Bush is repeating as the Democratic nominee after losing to Tipton 51.5% to 43.6% in 2018. Energy plays a critical role in the district as the Denver Gazette pointed it out in their endorsement of Boebert: “A retired sociology professor and far-left Democrat, Mitsch Bush has supported nearly every regulatory attack on oil, gas and coal producers who provide high-wage jobs and tax revenues throughout her district.“ President Trump won the district by 12 percentage points in 2016. Polls: An October poll showed Mitsch Bush up by a single point in the district, well within the margin of error. Colorado Back to Blog Posts