At least that seems to be the New York Times' take. After months of branding her an idiot, they suddenly wake up to realize that she's a lot smarter than they are [here].
Imagine that. Poor untutored Sarah is outmaneuvering the beltway and media elites and beating them at their own game. And she doesn't even have an Ivy League education. How can that be?
Ann Althouse has some observations on Sarah's transformation from "blithering idiot" to "devious genius" here.