The most well-known supporter of state's rights in the Senate was Calhoun, whose concept of nullification asserted that individual states had the authority to reject federal regulations they regarded to be unlawful.
What was John C. Calhoun's most notable success?
The reform of the armed forces and the United States Military Academy at West Point were among Calhoun's most notable achievements as secretary of war.
John C. Calhoun was an icon of the Old South and a supporter of states' rights and slavery. He worked to unite the South against the abolitionist onslaught on slavery throughout the final 20 years of his life while serving in the U.S. Senate.
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