Any state can easily tell the Supreme Court to take a hike. If they nullify a Federal law the Supremes can't do anything about it. They have no enforcement authority. The Executive Branch has the law enforcement authority. Do you think they will come to Wyoming and do anything. No way. Good on you “Cowboys”. In the future if you need any help put the word out. Your state is surrounded by millions of law abiding citizens with rifles and plenty of ammo.
RE :”
Any state can easily tell the Supreme Court to take a hike. If they nullify a Federal law the Supremes can't do anything about it. They have no enforcement authority” Your point was that if Brewer had defied the SCOTUS decision on AZ immigration law it would be up to justice to enforce it somehow? assuming the court make up penalties for defying it like fines?
Example : They could fine them but have no way to enforce it except send in FBI ?
It certainly sounds like it would be the show of a lifetime.