With a strong focus on constitutional law, this book examines the legal as well as the political power of 'the people' in constitutional democracies. Bringing together an international range of contributors from the USA, Latin America, the UK and continental Europe, it explores the complex relationship between constitutional democracy and 'the people' from the angles of constitutional law, legal theory, political theory, and history. Contributors explore this relationship through the lens of radical democracy, engaging with the work of key figures such as Hannah Arendt, Carl Schmitt, Claude Lefort, and Jacques Ranciere.