He admitted fully the right of revolution.

He accepted the proposition that no one was bound to obey an unconstitutional law; but the essential question was who was to say whether a law was unconstitutional or not.

Each State has that authority, was the reply of the nullifiers, and if the decision is against the validity of the law it cannot be executed within the limits of the dissenting State.

The vigorous sarcasm with which Mr.Webster depicted practical nullification, and showed that it was nothing more or less than revolution when actually carried out, was really the conclusive answer to the nullifying doctrine.

But Mr.
Calhoun and his school eagerly denied that nullification rested on the right to revolt against oppression.