Explain the controversy surrounding the Tariff of 1828. Why did South Carolina believe the Constitution gave them the right to nullify a law?

The Tariff of 1828 proved to be the impetus behind the entire nullification controversy. Explain the controversy surrounding the Tariff of 1828. Why did South Carolina believe the Constitution gave them the right to nullify a law? Do you believe a state should have the right to nullify a law it believes to be unconstitutional?