Mitt Romney was more likable as a liberal. That, at least, was my conclusion after watching a devastating video put together by the Democratic Party’s best (and maybe only) strategist: comedian Jon Stewart. Before my eyes was an early Rombot model, circa 1994, that we’ve not seen since: emotional, passionate, lively. He sneered derisively at the “Reagan-Bush” years, bragged about being a political independent, and indignantly defended his “consistent” support of abortion rights. Romney was so proud of his pro-choice pedigree that he even tweaked his Senate opponent, Democrat Ted Kennedy, for equivocation. A few years later, when he ran...