With Jon Stewart seemingly nervous about his upcoming debate against Bill O’Reilly, happening Saturday, he decided to bring out the Rob Portman to his Mitt Romney for a bit of pre-debate prep: enter his ideological enemy (and former correspondent), Stephen Colbert. Taking a Mr. Miyagi-like stance, Colbert tries to school his former master in the art of chicken wrangling. But will it help him take on Papa Bear himself?