Pub Showdown News Today

Good to have you. >> thanks, harris. harris: lets get to the news. the stage is set for the republican pub showdown in colorado. it is just hour from now. the first debate where ben carson enters at the top of key polling and donald trump is relegated to the number two spot. unfamiliar perch for the billionaire businessman as you might imagine. trump fighting back though. in a kind of interesting way. here he is in iowa. >> what is my competition? in all fairness, in all fairness, what is my com...