Gassen had 20,717 votes, or 50.6%, to Reagan’s 20,235, or 49.4%. Reagan had maintained a narrow lead throughout much of the evening after results were first posted about 7:25 p.m. Tuesday.

Democrat River Gassen and Republican Jeff Crank, candidates for Colorado’s 5th Congressional District, share a lighthearted conversation Tuesday after a debate in which they shared their ...

A conversation with Democrat River Gassen, a first-time politician, a science lecturer and graduate research assistant at University of Colorado Colorado Springs, with a background in physics.

Democrat River Gassen is a first-time candidate for office. She has an academic background in physics and had stints at NASA’s Glenn Research Center and Biofrontiers Center at UCCS.