Despite widespread opposition from California educator groups, Governor Gavin Newsom signed unprecedented legislation Tuesday that supporters say will crack down on antisemitism in the state's classrooms.The bill, Assembly Bill 715, introduced by democratic Assembly member Rick Chavez Zbur of Los Angeles and Dawn Addis of San Luis Obispo, establishes a new Office of Civil Rights and a first-in-the-nation statewide Antisemitism Prevention Coordinator in an effort to combat antisemitism in