On May 27, the California Secretary of State released the list of declared write-in candidates for the June 8 primary, for Congress and partisan state office.
It appears there will only be one or two minor party candidates on the general election ballot this year for any partisan race. There are no races in which there are only two candidates on the primary ballo9t and one of them is a minor party member.
When one combines the list of write-in candidates with the list of candidates who will be on the primary ballot, there is only once race in which it is settled that a minor party candidate will be on the general election ballot, and one other district in which it is somewhat likely. In the 8th Assembly race, Libertarian Thomas Nichols, who filed as a write-in, is one of only two candidates in the primary race, so he will be on the general election ballot. In the 59th Assembly race, there is an independent and a Libertarian who filed as write-ins, and there is only one candidate on the ballot, so the November election will either be between a Republican and an independent, or a Republican and a Libertarian.