The Iran–Contra Affair exposed one of the most secretive and controversial operations in modern American history. In the mid-1980s, senior officials in the Reagan administration covertly sold weapons to Iran—despite an arms embargo—hoping to secure the release of hostages in Lebanon. Profits from these sales were then illegally funnelled to the Contras fighting the Sandinista government in Nicaragua. This episode unravelled into a constitutional crisis, raising questions about presidential power, covert warfare, and accountability.