Phillip KokerPhilipp Koker is a lecturer and research fellow in the Department of Political Science, Leibniz University Hannover. His research focuses on presidential politics, political parties and elections, and comparative constitutional law. He is the author f Presidential Activism and Veto Power in Central and Eastern Europe and of contributions to Democratization, East European Politics, Party Politics, the Review of Central and East European Law, and The Oxford Handbook of Polish Politics, among others. Read More Read Less