"Don't believe the man who said those things a couple of days ago! He is A LIAR!"
Newt's problem (aside from the liability of just being Newt of course) is that to be electable he has to distance himself from Ryan's Medicare plan because it polls really badly. However in order to get the nomination he has to support the plan because it's central to the Republican theme of smaller government. I'm guessing that after Saturday, when the non-atheists start getting into the ring, you're going to see a lot of them wreck on the shoals of this dilemma.