Romney has won every debate so far, and tonight was no exception. His moment of greatest vulnerability came when Senator Santorum attacked him over health care, but Santorum was so rude about it that he ended up looking worse than Romney did. Romney took more hits than he has in previous debates, though, so this debate was a narrower win than its predecessors.
Perry did marginally better than he has on other nights, but only marginally. He still had trouble getting from the beginning of an answer all the way to the end.
Cain had nothing responsive to say about his signature issue and did worse on everything else.
Nobody but Ron Paul proposed any large and specific spending cuts. Maybe nothing has changed after all.