While this is, technically a Republican caucus, you do not need to be a registered Republican. It is open to all registered Washington state voters.
Benton County residents have three sites: the Three Rivers Convention Center, The Barn Restaurant in Prosser and the Paterson School. These will start at 8:30 a.m.
Franklin County voters also have three sites: Chiawana High School, Basin City Elementary and the Connell Fire Hall. These will start at 9:30 a.m.
You do not need to register in advance. Participation is free.