More like, 90% of the Republican vote, plus over 50% of independents equals win.
You must have missed the poll which had Sarah Palin beating Biden amongst independents, just a couple of weeks ago.
According to this Rasmussen poll, Palin’s overall Fav/Unfav now stands at 51/43, the highest I’ve seen them since last year. She now beats Obama’s numbers which are 50/49 according to Rasmussen this morning.