He is the author of the Rise of the Agricultural Welfare State: Institutions and Interest Group Power in the United States, France, and Japan (Princeton University Press, 2001). He has published articles in the American Journal of Political Science, British Journal of Political Science, Governance, and Studies in American Political Development. His most recent book, forthcoming from Oxford University Press, is entitled Building a Business of Politics: The Rise of Political Consulting and the Transformation of American Democracy.