The business of politics got a little dirty on "The Daily Show with Jon Stewart" Thursday night. Meghan McCain (yes, daughter of Arizona Senator John McCain) joined Stewart last night to chat about her book, "Dirty Sexy Politics," and the conversation soon veered into Palin territory. The book, Stewart pointed out, "is a view of the campaign trail that’s very personal" - almost like he was reading someone's diary, he said. “I basically wrote a very real book," McCain explained. "It’s very sad and I talk about everything – I talk about sex and politics and everything in between and...