The EU is currently marked by democracy problems at both the community and the member state levels. In the past decades, European decision-making authority has grown exponentially in breadth and depth without providing for appropriate mechanisms of democratic (input) legitimation. This is referred to as the EU’s democratic deficit. On the other hand, there has been a widespread surge of nationalist populism in the member states that has an authoritarian inclination. In some cases, such as Hungary and Poland, they have started to effectively undermine the domestic institutions of liberal democracy. I argue that these two developments are causally linked and mutually reinforcing, fueling a vicious cycle of increasingly authoritarian rule at the national as well as the supranational level.