Despite the overreach of the Federal Government of the last few decades, some say since the Civil War, we are still a collection of states to attempt to present

Despite the overreach of the Federal Government of the last few decades, some say since the Civil War, we are still a collection of states to attempt to present a united front. But the apparent lack of that united front is bigger than just discussing the pros and cons of the Electoral College. The EU structure from what I know is a similar idea, but I'm not familiar enough with the details on the EU to comment much more than that.