The idea of constitutional identity has been central to the negotiation of authority between EU and national constitutional orders. Many national constitutional courts have declared that the reach of EU law is limited by certain core elements of the national constitution, often labelled 'constitutional identity'. With the rise of illiberal democracies within the EU, the idea of constitutional identity has increasingly come under criticism, being seen as easily embedded in authoritarian, nativist rhetoric and vulnerable to being abused in bad faith.
In The Abuse of Constitutional Identity in the European Union