David Mark is editor-in-chief of Politix and a former senior editor at Politico, among other roles. His latest book, with Chuck McCutcheon, is "Dog Whistles, Walk-Backs and Washington Handshakes: Decoding the Jargon, Slang and Bluster of American Political Speech." David’s first book, "Going Dirty: The Art of Negative Campaigning," has been widely adopted in political science courses, was featured on “The Daily Show with Jon Stewart” in an interview segment, and mentioned in a “Jeopardy” question.