Jonathan is Professor of Politics at the London School of Economics. His research interests lie in the fields of political sociology and political theory. He has held visiting positions at the Wissenschaftskolleg zu Berlin, Harvard, Stanford, the Humboldt University, Hertie School of Governance, Sciences Po in Paris, and the Australian National University. Books include Politics of Last Resort: Governing by Emergency in the European Union (Oxford University Press, 2019), The Meaning of Partisanship (with Lea Ypi, Oxford University Press, 2016), and Political Allegiance after European Integration (Palgrave Macmillan, 2011). He has also written for The Guardian, New Statesman, OpenDemocracy and Boston Review. He was awarded the 2017 British Academy Brian Barry Prize for Excellence in Political Science.

At THE NEW INSTITUTE Jonathan was involved in the program "The Future of Democracy".