The 1850s offered the last remotely feasible chance for the United States to steer clear of Civil War. Yet fundamental differences between North and South about slavery and the meaning of freedom caused political conflicts to erupt again and again throughout the decade as the country lurched toward secession and war. The Shattering of the Union is a concise, readable analysis and survey of the major ideas and events that resulted in the Civil War. The first scholarly synthesis of America's final antebellum decade to be published in more than twenty years, this essential overview incorporates methods and findings by recognized historians on politics, society, race relations, ideology, and slavery. This book is a fascinating look at one of the pivotal decades in U.S. history.

When Buchanan entered the White House in March 1857, he seemed well positioned to accomplish his main objectives. A canny and seasoned politician from Pennsylvania with a reputation for moderation on slavery-related issues, Buchanan had a straightforward agenda: the amelioration of sectional tensions, the promotion of American prosperity, and the extension of the Democrats' control of the federal government. Four years later, Buchanan left Washington convinced that he had done his best and accomplished much. In fact, he left behind a shattered Democratic party, a new Republican president, Abraham Lincoln, and a ruptured Union. Except for a cadre of faithful Pennsylvania friends, Buchanan's reputation lay in ruins. He has consistently been ranked among the least effective presidents in American history.

During the long decade from 1848 to 1861 America was like a train speeding down the track, without an engineer or brakes. The new territories acquired from Mexico had vastly increased the size of the nation, but debate over their status—and more importantly the status of slavery within them—paralyzed the nation. Southerners gained access to the territories and a draconian fugitive slave law in the Compromise of 1850, but this only exacerbated sectional tensions. Virtually all northerners, even those who supported the law because they believed that it would preserve the union, despised being turned into slave catchers. In 1854, in the Kansas-Nebraska Act, Congress repealed the ban on slavery in the remaining unorganized territories. In 1857, in the Dred Scott case, the Supreme Court held that all bans on slavery in the territories were unconstitutional. Meanwhile, northern whites, free blacks, and fugitive slaves resisted the enforcement of the 1850 fugitive slave law. In Congress members carried weapons and Representative Preston Brooks assaulted Senator Charles Sumner with a cane, nearly killing him. This was the decade of the 1850s and these were the issues Congress grappled with. This volume of new essays examines many of these issues, helping us better understand the failure of political leadership in the decade that led to the Civil War.