That's funny. Really funny because as I seem to recall, Thomas Jefferson wrote a letter to a friend in a 'territory'[?] who was concerned about what would happen if it was rejected for statehood and Jefferson's reply was basically: "Nothing bad; you just are your own country in that case."
If Arizona wants to go at it alone - more power to them.
Staying in the US after a law was passed granting the states total control over immigration while at the same time bound to recognise all citizens - would be an unmitigated disaster.
If the SCOTUS rules on thursday to uphold the individual mandate, I suspect there will be calls to secede outright.
Which isn’t a bad thing given our ‘choice’ between Obama and Romney.