A: John C. Calhoun

P: Slavery was a big issue that divided the United States politically, economically, and even geographically.

P: 1850.

A: The citizens of the United States.

R: To signal a warning of a major conflict in the history of the United States.

M:Debate about slavery. The country is divided into two countries North and South.

S: This document foreshadowed the Civil War.