My longstanding colleague David Harrison and I have been tackling the question of to whom belongs EU citizenship (the individual or the state), and who should get a say in its removal since 2016, when the question first arose with the UK Brexit referendum. Here is one of our first (public) pieces on this often overviewed but most pressing question, not only for the EU’s citizens, but also for the EU itself (btw, we are still waiting for this question to be answered properly!):