Gee whiz, Sarah making calls in Louisiana for Newt was a bust. This is not something to crow about.
Actually, I think it illustrates Sarah's concerns that value voters are not really thinking clearly or big picture, and that they are choosing the wrong candidate to bring to the general. And the fact she did jump in for Newt means that she realizes that religious zeal, especially in the South, is the card Santorum is playing, and it won't pack much wallop elsewhere.
I think Sarah understands, like alot of Newt supporters everywhere, that it is very difficult, if not impossible to dissuade those captured by religious or ethnic zeal -- exactly like what happened in 2008 with the dems.