At the Washington top-two primary of August 4, Libertarian Anthony Welti received 13.4% of the vote in a three-way race, but that was third place, so he cannot run in the November election. His opponents were Democratic incumbent Mike Kreidler, and Republican Chirayu Avinash Patel.
This is the largest number of votes for a minor party or independent candidate for any office in Washington, in a race with both a Democrat and a Republican also running, since Ross Perot’s 1992 showing as an independent presidential candidate.