Disunion!

In the decades before the Civil War, Americans debating the fate of slavery often invoked the specter of disunion to frighten or discredit their opponents. According to Elizabeth Varon, "disunion" was a startling and provocative keyword in Americans' political vocabulary: it connoted the failure of the founders' singular effort to establish a lasting representative government. For many Americans in both the North and the South, disunion was a nightmare, the image of a cataclysm that would reduce them to misery and fratricidal war. For many others, however, threats, accusations, and…