3 3 3 republican presidenenal their fifth and final debate of the year. it was last night. in las vegas. the debate focused on national security and foreign policy. and there were fights between candidates. c - b - s news correspondent don champion has analysis of the debates winners. and the most talked about candidates. 3 (sot debate donald trump) i am totally committed to the republican party while donald party while donald trump shut the door on a third-party run during the fifth gop debate - he also took some hits. going blow for blow with jeb bush. (sot debate bush) he s a chaos candidate, and he d be a chaos president.(sot debate trump 21:02:36 ) jeb doesn t believe i m unhinged. he said that very simply because he has failed in this campaign. // analysts say bush had his strongest debate performance yet. (graphic twitter @gov government & elections team) coming in second to trump as the most talked about candidate of the night on twitter.this is the top tweeted mome