CNN CNN Newsroom With Fredricka Whitfield December 13, 2015 20:06:00
Important dynamics we'll see play out tuesday night. we'll all be watching for trump but if you look at at who are the front runners for the republican nomination, marco rubio is right up there. he and ted cruz have totally different versions on how to deal with the mideast. they don't get along. they're colleagues in the senate. sure, the fighting with trump but see if there's disagreement between rubio and cruz. >> there was a real rubio moment after the last debate. has it faded just a little since then? >> it's interesting, talking to his campaign, just months ago, they said, you know, we'...