Dan Rodgers, the Henry Charles Lea Professor of History, is an historian of American ideas and culture who has taught at Princeton since 1980. He is the author of four prize-winning books, including The Work Ethic in Industrial America, 1850-1920, Contested Truths: Keywords in American Politics, and Atlantic Crossings: Social Politics in a Progressive Age, which has been translated into German and Chinese. His most recent book, Age of Fracture (2011), a history of social ideas and arguments in America in the last quarter of the twentieth century, is a co-winner of the Bancroft Prize. His articles run the gamut from American exceptionalism, to the career of ‘republicanism,’ to the election of 2000.