2010Final results
2010 election for Colorado House District 18
Colorado House of Representatives · Colorado
Pete Lee (D) won with 54.7% of the vote, defeating Karen Cullen (R) by 9.4 points.
Pete LeeDemocrat · winner
54.7%10,808
Karen CullenRepublican
45.3%8,959
19,767 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