"A Union of the States containing such an ingredient seemed to provide for its own destruction. The use of force against a State, would look more like a declaration of war, than an infliction of punishment, and would probably be considered by the party attacked as a dissolution of all previous compacts by which it might be bound."30
But the power was later given to the president under the terms of the Militia Act. And nowhere does the Constitution say that troops cannot be called out against a state in rebellion against the federal government.