James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th President of the United States (1845–49). Polk was born in Mecklenburg County, North Carolina. He later lived in and represented Tennessee. A Democrat, Polk served as the 13th Speaker of the House of Representatives (1835–39) and Governor of Tennessee (1839–41). Polk was the surprise (dark horse) candidate for president in 1844, defeating Henry Clay of the rival Whig Party by promising to annex Texas. Polk was a leader of Jacksonian Democracy during the Second Party System. His nickname was "Young Hickory" because of his close association with "Old Hickory", Andrew Jackson.