Winfield Scott (1786–1866), “Old Fuss and Feathers,” was the associate of every president from Jefferson to Lincoln. Scott entered the military in 1809 and distinguished himself during the War of 1812 at the battles of Chippewa and Lundy’s Lane. He went on to serve in the Black Hawk War and the campaign against the Seminole and Creole Indians. After mediating an Anglo-American dispute over the Canadian border in 1838, Scott was appointed general-in-chief of the US Army in 1841. Due to his successes in the Mexican-American War (1846–1848),...