USA HISTORY

Detailed explanation-1: -A staunch defender of the institution of slavery, and a slave-owner himself, Calhoun was the Senate’s most prominent states’ rights advocate, and his doctrine of nullification professed that individual states had a right to reject federal policies that they deemed unconstitutional.

Detailed explanation-2: -Calhoun of South Carolina, became the principal advocate of the political theory of “concurrent majorities, ” which argued that there was not just majority rule in Congress but in the power of the states as well.

Detailed explanation-3: -The Compromise of 1850 provoked one of the Senate’s most famous debates. In his last speech to the Senate, John C. Calhoun of South Carolina protested the admission of California as a free state, claiming that the more powerful North was unfairly excluding the South from new territories and pushing the South to secede.