James Blaine: “Contention between sections, divided by a fixed line, is the most undesirable form of political controversy.”

All these provisions are made to protect the States, not to authorize an attack by one part of the country upon another; to preserve the peace, and not to plunge them into civil war.

The right of the General Government to preserve itself in its whole constitutional vigor by repelling a direct and positive aggression upon its property or its officers cannot be denied.

Without the exercise of those functions which belong exclusively to the civil service, the laws cannot be executed in any event, no matter what may be the physical strength which the Government has at its command.

You can use force only to repel an assault on the public property and aid the Courts in the performance of their duty.