Here is a brilliant analysis of the impact that Sarah Palin had on the 2008 campaign and the malign activity of the media in its attempt to destroy her. This is from "THE CONSERVATIVE MIND"
Site AT THIS LINK. The only aspect I would add is the exit poll analysis by CNN after the 2008 election which destroys the leftist myth that Palin had a negative effect on the McCain campaign's chances
AT THIS LINK