I am an Associate Professor of Political Science and Director of the Institute for European Studies at the University of British Columbia in Vancouver. I am also the founder and co-lead of the UBC Migration Cluster. My research focuses on the politics of migration and citizenship in liberal democracies. My book States Against Migrants: Deportation in Germany and the United States (2009) was published with Cambridge University Press. My work has also appeared in World Politics, Comparative Political Studies, Politics & Society, Journal of Ethnic and Migration Studies, West European Politics, and Government and Opposition. My research has been supported by the Social Sciences and Humanities Research Council, the Social Science Research Council, the German Academic Exchange Service, and the Canadian Department of Foreign Affairs and International Trade. I serve on the editorial boards of Politics & Society and the Journal of Ethnic and Migration Studies.