[vidarh]

Sort of, if you squint right.

The EU is in some ways closer to a confederation, but with various "hacks" - in the form of various treaties - to try to work around the problems that led the US to abandon it in favour of a federal model.

It's largely down to very different levels of willingness to integrate more, and various levels of opposition to the kind of constitutional changes that would be required for a federal model.