With Barack Obama pulling ahead in key battle ground states<\/a>, the question becomes what has been sinking the McCain campaign. The answer, from recent polling, is clear — Sarah Palin has become incredibly unpopular:<\/p>\n
Nationally, Palin also has the lowest favorable ratings on the Presidential tickets, with a 52% unfavorable rating [via Daily Kos daily poll tracker<\/a><\/em>]<\/p>\n