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.

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation