David Greenberg is a professor of History and of Journalism & Media Studies at Rutgers University. He is a leading expert on presidential history and rhetoric. Prof. Greenberg is the author of: Nixon’s Shadow: The History of an Image (W.W. Norton, 2003), Calvin Coolidge (Henry Holt, 2006), and Republic of Spin: An Inside History of the American Presidency (W.W. Norton, 2016). He writes frequently for the Washington Post, the New York Times, the Atlantic, Foreign Affairs, Daedalus, Dissent, Raritan, and many other scholarly and popular publications.