How did the Peggy Eaton affair happen?

The Peggy Eaton affair occurred in the early 1830s during Andrew Jackson's presidency. It revolved around Peggy Eaton, the socially ostracized wife of Jackson's Secretary of War, John Eaton, who was accused of improper conduct. Jackson sought to defend her against the scorn of other cabinet wives, particularly those aligned with Vice President John C. Calhoun. The controversy ultimately led to the resignation of several cabinet members and deepened political divisions within Jackson's administration.