2012Final resultsIncumbent defeated
2012 election for Colorado House District 17
Colorado House of Representatives · Colorado
Tony Exum (D) won with 54.6% of the vote, defeating Mark H. Barker (R) by 16.8 points.
Tony ExumDemocrat · winner
54.6%11,212
Mark H. BarkerRepublican · incumbent
37.8%7,757
Susan QuilleashLibertarian
4.9%1,006
Barry Forest PaceOther party
2.8%570
20,545 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 2012
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The candidates
Tony Exum (D)Mark H. Barker (R)
Also on the ballot: Susan Quilleash (Libertarian), 4.9%; Barry Forest Pace (Other party), 2.8%