questions about his biography. the rest of his performance was smoking. he shrugged off that question after a long week of scrutiny. that was important for his candidacy. >> moving forward, this campaign now is reaching a point of almost stasis. and even battle between carson and trumpet. a secondary battle between cruz and rubio down below. several points back. with bush and kasich and the rest desperately trying to get into the second tier. >> i think the biggest battle i am paying attention to is rubio versus cruz. we know about the outsiders, trump and carson, but which one of these senators, who's going to emerge as the champion of their wing? i think cruz was coming up on that trump message. he is ready in case one of the outsiders fade to catapult ahead. >> hold on there. thank you for tonight. get to bed. robert costa. don kasich took part in the debate. he joins us now.