In The Field of Blood, Joanne B. Freeman recovers the long-lost story of physical violence on the floor of the U.S. Congress in the decades before the Civil War. Legislative sessions were often punctuated by mortal threats, canings, flipped desks, and all-out slugfests. When debate broke down, congressmen drew pistols and waved Bowie knives. One representative even killed another in a duel. Many were beaten and bullied in an attempt to intimidate them into compliance, particularly on the issue of slavery.

These fights didn't happen in a vacuum. Freeman's dramatic accounts of brawls and thrashings tell a larger story of how fisticuffs and journalism, and the powerful emotions they elicited, raised tensions between North and South and led toward war. In the process, she brings the antebellum Congress to life, revealing its rough realities - the feel, sense, and sound of it - as well as its nation-shaping import. The result is riveting - and it reveals fresh understanding of the workings of American democracy and the bonds of Union on the eve of their greatest peril.