Why did john c. calhoun argue that states had the right to void federal laws?

Nullification is a legal theory that a state has the right to nullify, or invalidate, any federal law it deems unconstitutional. ... In "South Carolina Exposition and Protest", Calhoun argued that a state could veto any federal law that went beyond the enumerated powers and encroached upon the residual powers of the State.

what are the choices btw if it was me id say the lack of money to continue with education

during the pueblo revolt, father de mora hid most of the gold in the mine and covered the entrance. he tried to take some of the gold with him, but had to leave it behind in order to escape.