Michael Smith is Professor of European Politics and Jean Monnet Chair in the Department of Politics, History and International Relations at Loughborough University, UK, and Professor in European Politics in the Department of Politics and International Studies at the University of Warwick, UK.Stephan Keukeleire is Jean Monnet Professor in European Foreign Policy at Leuven International and European Studies (LINES) of the University of Leuven, Director of the 'Master of European Studies: Transnational and Global Perspectives' and 'Master in European Politics and Policies' in Leuven, and Visiting Professor at the College of Europe in Bruges, Belgium.Sophie Vanhoonacker is Professor in European Administrative Governance and Jean Monnet Chair in the Faculty of Arts and Social Sciences, Maastricht University, the Netherlands.