If Sarah Palin runs for president in 2012, can she win? Pundits have been buzzing about the possibility since the release of her book two weeks ago, and the itinerary and politics of her book tour suggest she hasn't ruled out a bid. Palin has said she "cannot predict what doors will be open in 2012," but can recent polling provide an answer? Can Palin Win a General Election? Ultimately, the potential for any Republican in 2012 will depend on voters' future assessments of President Obama. But even if he is vulnerable, Palin will face some huge obstacles, as the...