They can’t vote Republican in California, not for Senator. Thank that vile law that makes the November election a Communist runoff between two Democrats, disenfranchising millions of state voters.
Write-ins are also not counted, so the voter's only option is to vote for a Democrat or not vote. Sadly, it's the voters themselves who approved this law (Proposition 14 in 2010)
The jungle primary is the lesser of two evils. I’d rather have a say in which Democrat sits in the Senate, than allow only registered Democrats to choose in the primary. Republicans have gone something like 2 for 50 in statewide elections since 1994, with Arnold Schwarzenegger counting for both those two...