James Knox Polk was a slave-owning Tennessee Democrat who devoted his private life to profit from plantation slavery and his public career to his party and his section. He was, in short, a fierce Southern partisan. Yet this reality has been masked by generations of shallow scholarship or outright Southern apologetics. Biographies of the eleventh president have gloried in his aggressive territorial expansionism with little thought to motive or context; they have celebrated his strong leadership as chief executive without understanding his principles, goals, or personal ideology; they have taken his words as a Democratic partisan and successful planter-politician at face-value, failing to sufficiently explore party agenda and mechanics. Moreover, studies of the Mexican War or the broader antebellum era do not adequately uncover the partisan Polk, though several do a fine job of placing him the context of party and section.
In dispute are not the events of Polk’s career and administration, but his motives and principles. Born in North Carolina in November 1795, Polk made his life in the wilds of Tennessee as a capable lawyer and ambitious politician. Under the guidance of the influential planter-politician Andrew Jackson, Polk rose quickly in Democratic ranks and Southern social circles. In the 1820s and 1830s, as Jackson and Martin Van Buren forged a modern partisan organization out of Jefferson’s loose Democratic coalition, Polk served in the United States House of Representatives, seeing to the Democratic agenda with impressive diligence. In December 1835, the Tennessee Democrat was elected Speaker of the House, a position he enjoyed for four years. As the most powerful man in the lower chamber, Polk oversaw and aided the passage of the infamous “gag rule” that prohibited all