he will be challenged by the new democrat, governor christ, former governor. records on governor scott's plans kept secret with regard to the governor's plans. this from the arizona republic as the arizona republican selecting dou g ducy. you can check out the schedule on line at c-span.org with regard to debates coming up. following this story, he is a professor of a princeton university, a contributor to cnn.com on the issue of mitt romney. he's joining us live on the phone. thanks very much for being are us. >> thanks for having me. host: a lot of speculation. we'll hear from him in just a moment. you say that it is not out of question that mitt romney could run and could potentially get to '16 nomination for the gop. why? >> part of it is about him and part about the republican party. there are moments in history