As Californian voters checked their mailboxes this week, they found a voter guide containing conspiratorial claims about Israel and antisemitic rhetoric.The mailer, which was sent by California Secretary of State Shirley Weber to the households of all registered California voters, featured biographical information about candidates slated to appear in the state's June primaries. In all, there are 32 candidates listed, of whom 10 are considered serious contenders.Among those who are not: the far-