the non-mitt romney, non-ron paul vote, and that is enough to win the thing. >> john, what do you think santorum has to achieve in iowa to put the future of this race in serious doubt? >> well, i think howard's right. certainly if -- i think those scenarios are all long shot scenarios that howard laid out. i don't think they're totally implausible. i think bachmann's campaign is going to collapse pretty quick now given where she is. we've been wondering what was going to happen with the cultural conservative christian right vote for a long time, whether it would coalesce. santorum now seems to be the most likely person around whom it will coalesce. you can just imagine him either winning the caucuses or coming in second. if rick santorum, if he comes in first, that'cç an interesting outcome. especially if it means that mitt romney finishes third. i would actually say if ron paul wins the caucuses and rick santorum finishes second, the problem for romney is that he