The Latest: Democrats compete for open Seattle seat
Voters will decide Tuesday between 11 candidates for governor, though Democratic incumbent Gov. Jay Inslee and Republican challenger Bill Bryant are expected to easily advance to November.
More than four million of the state's registered voters started receiving their ballots in the mail weeks ago for the top two primary, in which the top two vote getters advance to the November ballot, regardless of party.
Because Washington is an all-mail-ballot state, results may take days to come in as the ballots — which just need to be postmarked by Tuesday — arrive in elections offices.