United Socialist States of America?
That's impossible.
Did you know that in tax rates Denmark in Europe is in fact the most socialistic country in the world, with 50% of it's GDP being taxed?
It's funny to see signs of Obama being called a communist by some people in USA... Seriously, in Denmark the Liberals would be on the far right, and Republicans would be so far to the right side that they wouldn't even be in Denmark anyways, lol.
I don't think you should be so afraid of a communist apocalypse if you are.
Here's a map with tax rates: