This definitive biography of James K. Polk covers the most important years of Polk's political career - from a twice-defeated gubernatorial candidate in Tennessee to dark-horse candidate for the presidency and one of the most successful first 18 months of any American president. The months of Polk’s administration covered here contain the bulk of his expansionist program - the annexation of Texas, the settlement of the Oregon boundary with Great Britain, and the war with Mexico that led to the acquisition of California and New Mexico.

The first vice president to become president on the death of the incumbent, John Tyler (1790-1862) was derided by critics as "His Accidency." In this biography of the 10th president, Edward P. Crapol challenges depictions of Tyler as a die-hard advocate of states' rights, limited government, and a strict interpretation of the Constitution. Instead, he argues, Tyler manipulated the Constitution to increase the executive power of the presidency. Crapol also highlights Tyler's faith in America's national destiny and his belief in boundless territorial expansion.

Often remembered as the president who died shortly after taking office, William Henry Harrison remains misunderstood by most Americans. Before becoming the ninth president of the United States in 1841, Harrison was instrumental in shaping the early years of westward expansion. Robert M. Owens now explores that era through the lens of Harrison’s career, providing a new synthesis of his role in the political development of Indiana Territory and in shaping Indian policy in the Old Northwest.

History chiefly remembers Martin Van Buren as the eighth president of the United States (1837– 1841). He was also, however, notable for achieving many firsts in American politics. He was the first American president to be born a citizen of the country, and not a British subject. He was the first Dutchman and the first man without Anglo-Saxon ancestry to serve as president. He was the first and only American president to have been raised in a language other than English.

In this lively and compelling biography, Harlow Giles Unger reveals the dominant political figure of a generation. A fierce fighter in four critical Revolutionary War battles and a courageous survivor of Valley Forge and a near-fatal wound at the Battle of Trenton, James Monroe (1751 - 1831) went on to become America's first full-time politician, dedicating his life to securing America's national and international durability.