Debate Preview: More Presidential?

RUSH:  I don't know what's gonna happen in the debate tonight.  I mean, I don't. Who does?  Trump's out there promising to try to be more presidential tonight.  Rubio says that, if he had to do it over again, he would not have gone negative on Trump. So he's gonna be dialing it back.  We have CNN moderating, so, you know, whether they want to go nuclear tonight or not, we won't know 'til we see how the moderators are gonna play it.  We do know that, if Trump's attac