His research and teaching focus on the intersections of three areas: federalism, judicial politics and ethno-national diversity, with a tendency to look at Canada from a broadly comparative perspective. He is the author of The Judicial Role in a Diverse Federation: Lessons from the Supreme Court of Canada (University of Toronto Press, 2016) and co-editor of Nationalism and Conflict Management (Routledge, 2012). His work has been published in Nations and Nationalism, Commonwealth and Comparative Politics, the Canadian Journal of Political Science, Publius, and the International Journal of Constitutional Law. He is also the founding co-editor of The State of Nationalism, an open-access portal for review articles on the study of nationalism.