Larsen (D): 58%
Bart (R): 37%
SurveyUSA interviewed 900 Washington adults 07/27/08 through 07/29/08; of the adults, 765 identified themselves as being registered to vote in Washington state. Of the registered voters, 507 were determined by SurveyUSA to be likely to vote in the November general election. 37 of Washington's 39 counties vote exclusively by mail; ballots must be postmarked no later than Election Day, 11/04/08.
http://www.surveyusa.com/client/PollReport.aspx?g=70fc3aeb-4e15-4a08-ad5e-92ad6598b39d
