President Andrew Jackson's traditional enemies were the moneyed elite and the supporters and planners of the Second Bank of the United States, which Jackson felt was an unconstitutional and dangerous institution. During the Nullification Crisis, which began in 1828 when the federal government imposed a tariff on the import of European goods, Jackson's vice-president, John C. Calhoun, supported the right of his home state, South Carolina, to declare the federal tariff law void within its borders. This sparked a bitter feud and political split between Jackson and his vice-president, with Jackson vowing to send troops to South Carolina to uphold the federal law.
Jackson swore that he would never forgive the supporters of John Quincy Adams, his opponent in the 1824 presidential election, who resorted to allegations of bigamy and adultery regarding the relationship between Jackson and his wife Rachel prior to her divorce from her first husband.
Jackson lost the 1824 election, but won the 1828 election. Jackson's wife Rachel, however, never lived to see his inauguration, having died suddenly on December 22, 1828. Jackson blamed her death on the campaign slanderers and referred to them as murderers.