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(1791-1839), served during the War of 1812, and was a member of the South Carolina Legislature from 1814 to 1818, in which year he was Speaker. From 1818 to 1822 he was Attorney-General of the State, and in 1823 was sent to the U.S. Senate, where he strenuously opposed the protective system, denying its constitutionality. He asserted that under the Constitution a State had the right to arrest the operation of such Federal enactments as she considered unconstitutional. This led to the famous debate between Webster and Hayne in 1830, respecting State rights and nullification. He was chairman of the State Convention in 1832, which reported the celebrated ordinance of nullification, and was Governor of South Carolina from 1832 to 1834, when that State prepared to enforce the nullification ordinance and make armed resistance against the Federal authority; but the tariff bill of Henry Clay compromised the difficulties. Hayne was a brilliant speaker.