fred yang, we see the romney campaign put out a video attacking rick perry. with the job plans. romney is trying to go for a knock-out blow while perry is trying to reintroduce himself. >> the other thing mitt romney is trying to do is show he can take on barack obama and the democrats next november. this happened for democrats in 2008. it has happened to republicans in 2012. they want to win. part of the romney message is, i'm the person who can take the fight to the democrats. >> kelly o'donnell, polls are showing that most people view him as the guy most likely to beat him. at the same time, when you ask who is most likeable and who agrees with you on the issues, they pick herman cain. >> is one of the things we see early in elections. people want to get to know someone they haven't known something about. it has been exciting and fun to talk about herman cain. many didn't know anything about his buy ou or the fact that he would perform. he has gotten past the like ability and opened up the door exposing some weaknesses that they may drive a truck through.