1980Flipped from DemocraticFinal resultsIncumbent defeated
1980 election for Colorado House District 58
Colorado House of Representatives · Colorado
Glenn Underwood (R) won with 50.3% of the vote, defeating C. Michael Callihan (D) by 0.6 points, a seat Democrats won last time.
Glenn UnderwoodRepublican · winner
50.3%9,931
C. Michael CallihanDemocrat · incumbent
49.7%9,811
19,742 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET