The European Union (EU) straddles accepted categories of political organization. It is neither a state nor an "ordinary" international organization. What sets the EU apart, perhaps above all, is its unique institutions: they resemble no other bodies found at the national or international level....

The European Union (EU) straddles accepted categories of political organization. It is neither a state nor an ordinary international organization. What sets the EU apart, perhaps above all, is its unique institutions: they resemble no other bodies found at the national or international level. We...