Former President Donald Trump held a rally in Mesa, Arizona on Sunday, but the Republican mayor of that city wasn’t there. He was not out of town – this was no ordinary snub. He was in Paradise Valley, which is about 10 miles northwest of Mesa, just on the other side of Scottsdale. And he was campaigning. A high-profile GOP event featuring the party’s titular head could not find a place on the calendar of GOP Mayor John Giles. He was at an event that he found more pressing. “There is a rally in Mesa, Arizona, today, featuring some well-known...