SAN DIEGO (AP) — A new bill in California would allow private citizens go after gun makers in the same way Texas lets them target abortion providers, though gun advocates immediately promised a court challenge if it becomes law. Democratic Gov. Gavin Newsom on Friday backed legislation that would let private citizens enforce the state’s ban on assault weapons. It’s modeled after a Texas law that lets private citizens enforce that state’s ban on abortions once a fetal heartbeat is detected. Newsom said he hopes the proposal forces the U.S. Supreme Court’s hand on the Texas abortion law. He said...