john heilemann wearing many hats for us in iowa. we look forward to hearing more from you tomorrow. after the break, what now? did celo green disrespect john lennon on new year's eve? that will be next on "now." >> i'm andrea mitchell, coming up next, live from ja vague joe's here in des moines, iowa. one day to go before the caucuses. the biggest wildcard, that undecided voter. we've got our interview with the man of the hour, rick santorum about his sudden surge in the plos. plus pollster ann seltzer and chrysalis sa take us behind the numbers. and ron paul appearing today with his son rand paul. we'll talk to his campaign manager.