tell you what, why don't we get a fifth credit card? that's not solving the problem. so, no, i am not in favor of continually raising the debt ceiling. >> reporter: now, i think you can see there trump still speaking to this crowd in las vegas. before he went in a number of reporters asked him what he thought of some of ben carson's recent comments. he said he's looking forward to reading ben carson's book. it appears their truce is holding for at least now, jake. >> sara murray in las vegas with the republicans. another republican candidate says flat out that no one in america could care less about who will become the next speaker of the house. it's new jersey governor chris christie. he's joining me to explain how he would get work done in washington if you vote for him for president. that's next.