What is calhoun's main claim in the speech?

During the course of his career, he reversed his stand as a nationalist and advocated states' rights as a means of preserving slavery in the South. As a South Carolina senator, Calhoun used the argument of states' rights to protect slavery in what is known as the Nullification Crisis of 1832-1833.Mar 18, 2018

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to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.