new jersey's combative governor chris christie won't confirm it himself, but sources tell nbc news that he will be the keynote speaker at this year's republican national convention. did i say combative? >> your rear end is going to get thrown in jail, idiot. >> this is the crap i have to hear. this is for real. you know first off, it's hon. of your business. >> if you want to put on a show and giggle every time i talk, i have no interest in answering your question. >> did i say on topic? are you tuned? thank you all very much and i'm sorry for that. >> the speaking slot at the convention almost certainly means he will not be vp but it gives him a high-profile spotlight. what's that like? we'll bring in patrick murphy who spoke at the 2008 convention in denver. >> good to be with you, chris.