in 1827 congress passed a high tariff o imported goods. Southerners opposed the tariff because they imported many goods. John C. Calhoun triggered the nullification crises when he argued that-

yes i think there would be volunteers

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.