Without reading the article, I'm going with Sarah Palin.
Schmidt is widely blamed for undermining Palin in the closing days of the campaign, when sheExactly right.stumbled incontentious interviews with establishment media outlets, though she drew large rally crowds and performed well against then-Sen. Joe Biden (D-DE) in the vice presidential debate.
His comments to Politico came after a week of extensive tweets and comments, including the admission that he lied about McCain’s alleged affair with a lobbyist during the 2008 primary. …
He went with Palin for one reason, to stop the Hillary supporters, who were upset with Obama, from voting for McCain.
Yes, Palin did get some conservatives on board, but she also drove away a lot of the Hillary supporters that might have otherwise voted for McCain.