2008Final results
2008 election for Washington Legislative District 10
Washington State Senate · Washington
Mary Margaret Haugen (D) won with 53.6% of the vote, defeating Linda Haddon (R) by 7.2 points.
Mary Margaret HaugenDemocrat · winner · incumbent
53.6%36,835
Linda HaddonRepublican
46.4%31,917
68,752 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