South Carolina was already shocked by the tariff in 1828 and was discussed, but left aside throughout the year until Jackson's tenure . As president, he faced the threat of secession from South Carolina due to the abolition tariff after signing other tariffs that were also protective of nature. The issue was known as the Nullification Crisis which occurred in 1832-33. It was a crisis that involved a confrontation between South Carolina and the federal government. The crisis created an open rift over the issue between Jackson and Vice President John C. Calhoun. Calhoun was vice president in 1832, but was replaced with Martin Van Buren by the Democratic Party and resigned as senator for the South Carolina legislature. It was in November 1832 that the state convention declared the federal tariffs of 1828 and 1832 unconstitutional and the cancellation. It also stipulated that effective February 1, 1833, the federal government could no longer collect tariff revenue within South Carolina's borders. Because of South Carolina's actions, this shocked the United States and infuriated President Jackson. In retaliation for South Carolina's actions, on December 10, 1832, Jackson denied a state's right to secede from the union or nullify federal laws. He threatened to enforce the proclamation with the use of federal arms and would consider it treason in any act