immigrants already here living in the u.s. in his own words, they have to go. trump is positioning himself the head of what we'll call the round-them-up caucus, the part of the party that's perfectly comfortable telling millions of americans we're coming for your friends and loved ones and colleagues and coworkers. we're going to lock them up and throw them out of the country. then there's the nominally more moderate ring of the party which is arguing not that trump's approach is wrong, but that it's just impracticable. unrealistic. or as jeb bush told "the washington post," quote, a plan needs to be grounded in reality. >> obviously, there's some ideas that have merit, but the majority of it is really not a workable plan that could ever pass congress. >> donald trump's eight-page plan is gibberish and unworkable. what he's not doing is embracing a workable system. >> while that may be correct on the merits, it might not be as extreme as trump's rhetoric as they pointed out on this show last night, it still sends a