Jacksonian democracy, also known as Jacksonianism, was a 19th-century political ideology in the United States that restructured a number of federal institutions. Originating with the seventh U.S. president, Andrew Jackson and his supporters, it became the nation's dominant political worldview for a generation. The term itself was in active use by the 1830s.
This era, called the Jacksonian Era or Second Party System by historians and political scientists, lasted roughly from Jackson's 1828 presidential election until the practice of slavery became the dominant issue with the passage of the Kansas–Nebraska Act in 1854 and the political repercussions of the American Civil War dramatically reshaped American politics. It emerged when the long-dominant Democratic-Republican Party became factionalized around the 1824 presidential election. Jackson's supporters began to form the modern Democratic Party. His political rivals John Quincy Adams and Henry Clay created the National Republican Party, which would afterward combine with other anti-Jackson political groups to form the Whig Party.