James Blaine: “His perceptions were keen, his analysis was extraordinarily rapid, his power of expression remarkable.”

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.

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.

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…

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