Many people undoubtedly thought when violence broke out at the White House Correspondents’ dinner that Iranian Islamists had made good on their threat to pay someone to assassinate President Donald Trump.While not an impossibility, however, that scenario seems extremely unlikely unless the shooter didn’t mind dying and wanted a relative paid in his stead.Otherwise, he would hardly have tried to push through a closed door into the meeting hall through a phalanx of law enforcement officials.The shooter, incidentally, is a leftwing school teacher from California. In fact, he was declared “teacher of the month” for Los Angeles County.That doesn’t say ...