Guest host David Horton interviews Thomas Jefferson, the third President of the United States, about his life as a diplomat. Jefferson served for five years as the American minister to the court of Louis XVI just before the French Revolution. Then, he served three years as America's first Secretary of State — trying to keep the United States from being drawn into the chaos of the French Revolution and the Napoleonic wars. As president, Jefferson "solved" the problem of the Mississippi River by buying the Louisiana Territory from Napoleon in 1803, which doubled the size of the United States. Jefferson then sent his protégé Meriwether Lewis to inventory that vast territory. Jefferson was an admirer of Adam Smith. He believed that the less governments intruded into the free flow of goods and services in the world, the more efficient economies would be, and more prosperity would result. In the third segment of the program, Clay and David talked carefully about the trade, tariff, and foreign policy situation that has unfolded in the first months of the second Trump term. This interview was recorded on March 12, 2025.