2010Flipped from DemocraticFinal resultsIncumbent defeated
2010 election for Colorado House District 17
Colorado House of Representatives · Colorado
Mark H. Barker (R) won with 53.6% of the vote, defeating Dennis Apuan (D) by 7.3 points, a seat Democrats won last time.
Mark H. BarkerRepublican · winner
53.6%4,807
Dennis ApuanDemocrat · incumbent
46.4%4,155
8,962 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET