Many of the same folks who don't like Sarah, don't like Newt and vice-versa. By adding their negatives together, you are double-counting those people.
Furthermore, Obama and Romney will be splitting the liberal and moderate/RINO side of the electorate.
Add Ron Paul at the Fed, with Gingrich and Palin, and you’ll peel off voters currently fed up with both the RINOs and the Communists.
Paul would take Obama voters out of the Dems’ camp. He’d get the libertarians, and a whole lot of active service people.
Palin and Gingrich would draw voters out of the RINO establishment camp. Added together with the virtually outraged mindset a lot of Americans are in now, and you get magic:
Voila. A new party is born.
Joke, short way of saying, negatives that high are a big problem.