Sarah Palin's X-factor:
There's been a lot of talk these days about Palin and, in the wake of her book and her followers, how she might possibly run for president in 2012.
They all assume that, overall, the situation then will be pretty much like they are today. So her "campaign", such as it might be, would be about what to do post 2012.
But one development could change that. What if John McCain becomes seriously ill in the next couple of years? At that point, contemplating a McCain win in 2008, people will naturally wonder how Vice President Palin, now elevated to President Palin, would handle the problems of the day. She'd be forced to address issues in a manner unlike today's FaceBook postings. It could seriously affect her public profile.