To me, what was missed during the debate tonight, with all the focus on the gangbanging of Cain by the other candidates, is that Romney slipped the knife into Perry and took him out of the running, I believe permanently. When Perry called Romney a liar, Romney responded by getting Perry's goat, and caused him to lose his temper. For a minute, I thought punches were going to be thrown. Perry intimidated Ron Paul the same way before, when he grabbed his wrist and stuck his finger in his face, and he must have thought that would work again. It backfired on him in a big way, and it ended up with Perry looking like the schoolyard bully who just got beat up by the skinny kid.
Whatever comes out of this debate, one thing is certain. Perry is now toast. As for Cain, he may gain a little, just because he was able to stay out of the fray.