...”Palin is representative of large swathes of the Republican base”.....
That needs to be understood by many who thinks she always needs to remain in a box of who she supports.
I think Sarah is often privy to things we are not and makes decisions about who she will support based on more of the facts, and the trajectory of where elections will likely go, then we have access to or about....
As I see it she currently works with and among those I favor most for candidates in the Pres. election, and for that I will trust her judgement even if I might not agree.
In the end we all will decide for ourselves...but currently, and in the past, she has been good for the grass roots folks of which I am one.