rick santorum. it's difficult to see a realistic case for anyone but mitt romney winning this. >> because pennsylvania is looming, i think it's important that pennsylvania is where rick santorum is tonight. if you put yourself in rick santorum's shoes and you think what it is he's staying in for. he's joan iing it. i think he thinks it will help his issues. after having lost his seat in the senate by 18 points in pennsylvania, the only way he can go back to not just zero but maybe less than zero is if he goes back to pennsylvania and pennsylvania looks at him again and says no, rick, no. if pennsylvania votes rick down, he's worst off when he started this thing. if he loses it twice, isn't that disaster for him? >> that's the hope for the romney campaign is he will have a recognition and fear that that