2008Final results
2008 election for Colorado Senate District 10
Colorado State Senate · Colorado
Bill Cadman (R) won with 65.0% of the vote, defeating Diane D. Whitley (D) by 30.0 points.
Bill CadmanRepublican · winner
65.0%42,650
Diane D. WhitleyDemocrat
35.0%22,955
65,605 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 2008
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET