If you have any doubt that antisemitism is a persistent problem in California and the U.S. as a whole, you need only consult the voter information guide for the upcoming primary election. That’s where Don J. Grundmann, an independent candidate for governor, has written a crazy anti-Israel rant that is as sinister as it is bizarre. It’s in his “candidate statement,” page 24. Grundmann claims, among other things, that conservative activist Charlie Kirk was “murdered by [a] shape-charged bomb Israel used”; that the World Trade Center was destroyed by Israeli art students, and that “Israel rules our conquered Republic.” For...