Listening to the candidates debate tonight, I come away with one overriding feeling, a result both of how they delivered their remarks and what they actually said: Romney has memorized a series of positions; Gingrich has thought every issue through and is fully and emotionalluy committed to it. Though not close to catching a break in the polls, Santorum and Paul communicate depth and conviction, too, just like Newt. Romney may share that clarity of thought and intensity of feeling, as well, but he doesn’t convey it. It is hard to imagine him coming out ahead in Florida and later primaries until he closes this authenticity gap.