Marco Rubio Fought off GOP Candidates at Latest Debate

The Florida senator faced criticism from his presidential competitors.
6:01 | 02/07/16

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Transcript for Marco Rubio Fought off GOP Candidates at Latest Debate
the campaign trail? It was uncomfortable at times for Marco Rubio. He had all the momentum going into the debate. The other candidates did everything they could to derail him. David Wright joins us from the debate hall with much more. Hi, David. Reporter: Hi, Paula. This was a lost opportunity at best for Marco Rubio after a strong showing in Iowa. His big moment to shine. Many would say that he choked. It all started with David Muir's first question to Chris Christie. I do want to ask governor Christie. You said fool me once, shame on you, fool me twice, shame on me. When it comes to a first-term senator. Reporter: After that, he came out swinging hard. First, let's remember something, every morning when a United States senator gets up, they think about what kind of speech can they give. Every morning when I get up, I think what kind of problem do I need to solve for the people that elected me. Reporter: Christie pummeled Rubio for more than seven straight minutes. Wait a second. Is that one of the skills you get as a United States senator esp also. Reporter: Rubio punched back. Chris -- Chris, your state got hit by a massive snowstorm two weeks ago. You didn't want to go back. Reporter: Chat's when rub roe got tangled up in his talking points. Let's dispel this fiction that Barack Obama doesn't know what he's doing. There sit. There it is. The memorized 5-second speech. There it is everybody. Reporter: Even Rubio's fellow floridian seemed to jump in on Christie's side. You learn this. You learn this by doing it. Not to say. Let's be clear, Marco Rubio is a gifted, gifted politician. Reporter: Rubio, clearly rocked by the blows, moved on. Jumping back in with Ted Cruz after Martha asked about attacking north Korean missiles before they launch. It's standard procedure for the United States to -- I'm talking about a preemptive strike on the launch pad. But it's important to note. I think senator Cruz was alluding to this as well. Reporter: Should I go now? This is where one of the other big moments happened. Dr. Ben Carson missing his entrance cue. He stood waiting in the wings. Donald Trump kept him company for a little while. Apparently, it was very hard for them to hear with all of the applause. David and Martha were facing this way. They didn't see what was going on. In the end, governor Chris Christie offered to introduce governor kasich. It was a comedy of errors, shall we say. David, it's always your big moment. All of us who have worked in live television have had moments. As a reminder, it's live, folks, anything can happen. Let's do some Sunday morning quarterbacking with Matt dowd, also in the debate hall there in Manchester. Matt, good morning. Let's start with Rubio. Was he seriously damaged by what happened on stage last night? Since we're going stay with the football analogies. I think what happened last night to Marco Rubio was that the young quarterback who had completed a bunch of passes got sacked by the experienced linemen. Now the question is, does he have a knee injury, an arm injury, or is he out of the game? I think what it does is two things. Takes away momentum coming out of Iowa and into New Hampshire. He's lost the momentum. Can he still finish second? I think he can. The other thing more importantly is, is this now, is this criticism now in the water table. It was something a lot of people thought about. Is he ready? Is he experience snd is he just a great speech or is there more to him? That's the thing that could be a bigger prom for anymore the long run. Can he recover? Chris Christie is a former federal prosecutor. Think we were reminded of that. Does that help Christie or perhaps somebody else on the the stage? I think it might help Christie a little bit. Right now, here in new Hampshire, he's at six or seven in the polls in the single digits. Even if he gets a bump of two or three, it won't help much. I think it could help others on the stage who came in watching the Rubio momentum rise. Now it's stopped by Christie. Donald Trump. Do you tink he did anything that will impact his front-runner status. In particular, what Jon Karl said he had never seen before, particularly a conditioned attacking members of the audience? Think he'll benefit from that. A loft people say, yeah, the party is taken over by contributors. Big special interests. Donald Trump took them on in the audience. Think Donald Trump, I wouldn't say he won the debate. I would say he won the night. He walked in here with a double-digit lead. He comes out with a double-digit lead. The map person that was competing to beat him in new Hampshire, Marco Rubio's momentum was stopped. I think Donald Trump is probably very happy about the night last night. So there are eight gop candidates right now. The governors, kasich, bush, and Christie had a strong night. Especially Christie. Do you have a sense that if they don't do well in New Hampshire, any of them will drop out? There's three governors still competing in this race. Two of them or maybe one of them are only going to go on from here. I think you'll see one or two of the governors after Tuesday seriously consider and drop out. They may take a little while. I think you'll only see one, at most two governors come out of New Hampshire Tuesday night. So high these stakes. Thank you, Matt. Let's not forget the democrats. Hillary Clinton and Bernie

This transcript has been automatically generated and may not be 100% accurate.

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