Right, right, “it’s just one poll.†But it isn’t. A few weeks ago, PPP had Flake’s approval rating in Arizona a breezy 18/63 overall, including 22/57 among Republicans. JMC Analytics, the firm responsible for this new survey, has him at 22/67 among Republicans. So intense is anti-Flake sentiment among Arizona GOPers in the wake of his feud with Trump that Kelli Ward, a comparatively weak candidate, has more than doubled him up here.It’d be unusual for a youngish incumbent not to run for reelection in the belief that he can’t possibly win. U.S. senators are, by definition, good at...