how would a president romney or gingrich or cain handle a situation like this? that is the kind of topic the republican candidates will debate tonight. its focus will be foreign policy and national security. cnn, the heritage foundation and the american enterprise institute will bring it to you from washington tonight at 8:00 p.m. eastern. we re talking to our deputy political director paul steinhauser, pentagon correspondent chris lawrence and joe johns at constitution hall where the debate will take place. joe, let s start with you. is the 11th big gop presidential debate this year, what are the expectations? who might benefit from a foreign policy question tonight and who might, you know, possibly be in trouble? well, when you look at the range of all these republican candidates who are going to be here at dar constitutional hall, the first thing you can say is that there are at least three candidates who are expected to know this stuff cold. that would be the former spe