Transcript for Everything to Know About the Republican Debate
We'll start with the republican debate, which aired right here on ABC overnight. Plenty of fireworks. Perhaps serious consequences for some of the candidates with the New Hampshire primary just two days away. We have team coverage. We'll start with Jon Karl right there in the debate hall. Hi, Jon. Good morning, Paula. It was a raucous fight. It was a good night for the three governors on the stage. They had been stuck on the the back of the back. Each of them broke through in a do or die debate for all of them. Back at center stage, Donald Trump responded to questions from his rivals of whether he has the temperament to be the commander in chief. I think I have the best one. Other people up here would be faster on the trigger. Reporter: Ted Cruz said the week trump was so intemperate he might nuke Denmark. Asked about that, he backed off. Do you stand by those words? I think that is an assessment the voters are going to make. If you noticed, he didn't answer your question. Reporter: Cruz apologized to Ben Carson, after his campaign wrongly said that his campaign was going drop out. I apologized then. I do so now. Ben, I'm sorry. We can see what happened. Everybody can see what happened. Cow can make your own judgment. Reporter: The biggest target of the night was Marco Rubio. He ran into a buzz saw named Chris Christie. You have not been involved in a decision where you have to be held accountable. I think the experience is not just what you did but how it worked out. This company has a debt problem. We don't need the experience of someone -- When you're a governor of the state, the memorized 30-second speech doesn't solve one problem and when the worst natural disaster in your state's history hits you, they expect you to rebuild their state. That's what I've done. None of that happens on the floor of the United States senate. It's a fine job. I'm glad you ran for it. But it doesn't prepare you for president of the the united States. Reporter: Perhaps the real story of the night was the governors, Christie, cakasich, and bush. We have to come together. Party and ideology second in the backseat of this country. That's what we need to do. Reporter: Jeb bush went after trump on the issue of imminent domain. Until trump shushed him. Let me talk. Quiet. Reporter: Trump take the audience. That's all of his doerns and special interests out there. So -- that's what it is. Reporter: I have never seen that before. A candidate on the stage attacking the debate audience. With just two days to go until the New Hampshire primary, the candidates are hitting the stage hard. I count 15 events today, that's all before the super bowl. I'm going to pick it up from here, Jon. How many times have you said, I have never seen that before on the campaign trail? It was uncomfortable at
This transcript has been automatically generated and may not be 100% accurate.