Sarah Palin says that she's answering a "higher calling" in announcing her resignation, adding that she can go national now and seek to unify the conservatives.
Pardon me for saying this, but this Bull Goose Loony has been pranging about the Lower 48 for far too long since the end of the 2008 election, to the detriment of the state she governs.* Her "higher calling" may be to raise as much money as possible to defend herself against any legal challenges (it is rumored that an indictment is in the offing).
Now, to any one in the Republican Party who has the merest moiety of their marbles,** Palin has managed to destroy whatever credibility she had left as a serious leadership voice in the Party. The Establishment has almost written her off and the GOPAQ (GOP al Qaeda, the rancid Base of the Party) is beyond help anyway, so the only "calling" she's possibly answering is the siren song of her bank account - or she's just delusional.
* She is still Governor until July 26th.
** My political and social leanings put me beyond the pale of the Party, so I consider myself smarter than most of the Party membership. So there.