Allan Mansoor has had quite a year, however you judge it. Mansoor, the mayor of Costa Mesa, made national headlines by proposing that the city train its police officers to check for criminals’ immigration status. Besides headlines, he also set off a political firestorm and a strident debate that played out at City Council meetings (with one man being arrested), in letters to the editors and in demonstrations in the city. Quite a scene for someone who considers himself a man of few words. It’s tough to imagine what a few words can do. “It’s something that I believe the...