And I believe it's time the Supreme Court were held to task for its rulings. — I for one would love to see Kelo used as justification for stripping them of all real estate they own.
Agreed, the Supreme Court should be held accountable for its rulings.
My question is this - in your hypothetical, how could the two state governors be held accountable for their actions? Your logic seems to dictate that as soon as the governors declared an invasion, it would become treason to take any action against their declaration.