Congress was divided over how the Union should be reunited: when and how the secessionist South should regain full status, whether former Confederates should be punished, and when and whether black men should be given the vote. Devastated by war and resorting to violence, many white Southerners hoped to restore a pre-Civil War society, just without slavery, and the pugnacious Andrew Johnson, who was no Lincoln, seemed to share their goals. With the unchecked power of executive orders, Johnson ignored Congress, pardoned rebel leaders, promoted white supremacy, opposed civil rights, and called Reconstruction unnecessary. Congress had to stop the American president who acted like a king.With her extensive research and profound insights, Brenda Wineapple dramatically restores this pivotal period in American history, when the country, on the heels of a brutal war, was rocked by the first-ever impeachment of a sitting American president. And she brings to vivid life the extraordinary characters who brought that impeachment forward: the willful Johnson and his retinue of advocates--including complicated men like Secretary of State William Seward--as well as the equally complicated visionaries committed to justice and equality for all, like Thaddeus Stevens, Charles Sumner, Frederick Douglass, and Ulysses S. Grant. Theirs was a last-ditch, patriotic, and Constitutional effort to render the goals of the Civil War into reality and to make the Union free, fair, and whole.

    But when he was appointed the chief medical officer for the Army of the Potomac, he revolutionized combat medicine over the course of four major battles--Antietam, Fredericksburg, Chancellorsville, and Gettysburg--that produced unprecedented numbers of casualties. He made battlefield survival possible by creating the first organized ambulance corps and a more effective field hospital system. He imposed medical professionalism on a chaotic battlefield. Where before 20 percent of the men were unfit to fight because of disease, squalid conditions, and poor nutrition, he improved health and combat readiness by pioneering hygiene and diet standards. Based on original research, and with stirring accounts of battle and the struggle to invent and supply adequate care during impossible conditions, this new biography recounts Letterman's life from his small-town Pennsylvania beginnings to his trailblazing wartime years and his subsequent life as a wildcatter and the medical examiner of San Francisco. At last, here is the missing portrait of a key figure of Civil War history and military medicine. His principles of battlefield care continue to be taught to military commanders and first responders.