Amid vulgar heckling brought on by his own reckless behavior and smug jokes, Weiner told reporters at his three-ring press conference that there is “no higher honor in a democracy” than to be an elected representative. But like legions of entrenched swamp creatures, he’s lost sight of the simple proposition that serving in Congress should remain a temporary calling, not a lifelong career. Last year, the now-jobless Weiner joked on former roommate Jon Stewart’s cable comedy show that he didn’t “have a lot of marketable skills.” It’s one of Weiner’s rare truthful utterances over the past year. A protégé of...