""John C. Calhoun"" by Hunt Gaillard is a comprehensive biography of one of the most influential political figures in American history. John C. Calhoun was a South Carolina statesman who served as a congressman, senator, vice president, and secretary of state during the early 19th century. He is best known for his defense of states' rights and his advocacy for slavery, which made him a controversial figure in his time and continues to shape debates...