In this engaging discussion, Brian Doherty, author of "Modern Libertarianism," delves into the evolution of libertarian thought in the 20th century. He highlights the conflicting philosophies of Rothbard and Hayek regarding governance and law. Doherty also explores the transformative influence of thinkers like Milton Friedman and Ayn Rand, and how libertarian ideas navigated historical events like the New Deal and the Cold War. The intertwining of libertarianism and conservatism, especially through Barry Goldwater, provides fascinating insights into their political interplay.