Biography Ira Katznelson, Ruggles Professor of Political Science and History, specializes in American political development, as well as comparative politics and political theory. He earned his B.A. at Columbia (1966) and his Ph.D. at Cambridge (1969), and taught at Chicago and the NewSchool before joining the Columbia faculty in 1994. His books include: Black Men, White Cities (1973); City Trenches (1981); Schooling for All (with Margaret Weir, 1985); Marxism and the City (1992); Liberalism’s Crooked Circle (1996), winner of the American Political Science Association’s Michael Harrington Prize and Columbia’s Lionel Trilling Award; Desolation and Enlightenment (2003), winner of the David and Elaine Spitz Prize of the Conference for the Study of Political Thought; and When Affirmative Action Was White (2005). He also has co-edited: Working Class Formation (1986); Paths of Emancipation (1995); Political Science (2002); Shaped by War and Trade (2002); and Preferences and Situations (2005).