Why did e-mails show that Sarah Palin liked Obama's speeches & policies prior to being selected by McCain?

That's Sarah for you. It's the same thing as The Bridge To Nowhere that she claimed she never supported building in Alaska and would turn down Federal money to build it. Pictures were published of her showing tee shirts that supported building the bridge and documentation that she was 100% for it. She's either dumb as dirt or thinks the American public is stupid enough to believe her even when the truth is clearly on record as to choices she made as Governor.