James Blaine: “No cause is more potent than the prodigious capacity of machinery set in motion by the agency of steam.”

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.

Under such circumstances, to send a military force into any State, with orders to act against the people, would be simply making war upon them.

And if Congress shall break up the present Union by unconstitutionally putting strife and enmity and armed hostility between different sections of the country, instead of the domestic tranquility which the Constitution was meant to insure…

But this is a totally different thing from an offensive war to punish the people for the political misdeeds of their State Government, or to enforce an acknowledgment that the Government of the United States is supreme.