Republican John Koster and Democrat Suzan DelBene grabbed the early lead Aug. 7 in the battle for an open seat in the 1st Congressional District.
Koster, a Snohomish County Councilman, had an overwhelming lead with 43.8 percent followed by DelBene with 23.3 percent in balloting in Snohomish, Skagit and Whatcom counties.
Rounding out the field of seven candidates are Democrats Darcy Burner with 14.6 percent, Laura Ruderman with 7.1 percent, Steve Hobbs with 6.8 percent, and Darshan Rauniyar with 2.5 percent. Larry Ishmael, an independent, had 2 percent.
Koster and DelBene also forged ahead in the special election to serve one-month in Congress to finish the term of Democrat Jay Inslee, who resigned from Congress in March to run full-time for governor.
In the 11-person field, Koster received 36 percent and DelBene 25 percent in initial returns.
Democratic Snohomish County Councilman Brian Sullivan is fifth with 4.6 percent in early returns posted by the Secretary of State.