The European Union is facing turbulent times. It is plagued by deep divisions over how to shape its future. Over half a century of integration has created a profound interconnectedness between the political, economic, and social fates of member states. At the same time, however, the fortunes of member states have started to diverge dramatically.
As a result, the political fault lines are widening. Today, they crosscut the continent from North to South on the economy and austerity, and from East to West on migration and human rights. What are the effects of these developments on public opinion? By presenting a wealth of empirical evidence, this lecture provides an overview of the contours of public opinion. Moreover, it discusses how it matters for behaviour in elections and how it shapes possible reform of the European Union in the future.