Scott Mainwaring is the Eugene and Helen Conley Professor of Political Science at the University of Notre Dame. His research interests include democratic institutions, democratization, and political parties and party systems. Among his previous books are Rethinking Party Systems in the Third Wave of Democratization: The Case of Brazil (1999), The Third Wave of Democratization in Latin America: Advances and Setbacks (co-edited, Cambridge University Press, 2005), The Crisis of Democratic Representation in the Andes (co-edited, 2006) and Democratic Governance in Latin America (co-edited, 2010). M...