Mitt's suddenly "playing to win" in Iowa. Nate Silver thinks this wise:
[T]he dynamics of this particular campaign are such that expectations-setting can only be a secondary concern for Mr. Romney. The upside of possibly winning Iowa is too high for Mr. Romney to pass up, and the risks of giving a free pass to another candidate are too great.
Jennifer Rubin adds that a divided evangelical electorate could bolster Romney's efforts.
The Dish 