Washington voters cast ballots in the state’s August 4 primary election, selecting candidates who will advance to the November general election for federal, state, and local offices. The primary determines which candidates move forward for positions including U.S. House seats, State Senate, State House, and State Supreme Court posts, according to the King County Elections office.
In Washington’s distinctive top-two primary system, all candidates for the same office appear on a single ballot regardless of their party affiliation or preference. The two candidates who receive the most votes advance to the November election, even if both candidates share the same party preference.

This open primary format differs significantly from the traditional party-based systems used in most other states. Washington voters do not need to declare a party affiliation to participate, and they can vote for any candidate regardless of party. According to the Secretary of State, this system allows voters to choose among all candidates running for each office.
Initial results from the August 4 primary were posted on election day shortly after 8 p.m., with updates continuing on weekdays at 4 p.m. until final certification. King County, home to Seattle and the state’s most populous region, reported preliminary results alongside other Washington counties including Thurston, Snohomish, and Pierce.

The primary results set the stage for the November 3 general election, where the November candidates will face off for the offices on the ballot. Elections today set stage for November races in Michigan, Virginia, Kansas, Missouri, showing that Washington was one of several states holding primaries on August 4. Find your polling place for today’s primary election across the US provided resources for voters seeking their voting locations, and Virginia primary voters head to polls today for Senate, House races highlighted concurrent voting activity in other states.
Sources
- King County Elections — confirmed August 4, 2026 primary date and result posting timeline
- KUOW (NPR Puget Sound) — provided live election results coverage and race information
- Ballotpedia — detailed top-two primary system and 2026 Washington primary races
- Washington Secretary of State — explained top-two primary mechanics and voter participation rules
- Thurston County Auditor — reported unofficial results for August 4 primary











