But at the Future of Freedom Foundation, Paul was right at home, delivering a speech entitled "Enemies: Foreign And Domestic" about how to apply the principles of non-interventionism in domestic and foreign policy.

He spoke about how his stint in Congress made him more skeptical of government and wary of the deep state's capacity for maliciousness, beginning with his early days in Washington.  

"When I went to Washington, I thought I had a pretty good understanding of the Constitution and we went back and forth and it turned out my understanding was completely wrong and they had to convince me. But I had a little trouble listening to their arguments. They told me that the Constitution should be more flexible, it should be a living document, that it shouldn't be overly rigid, that's how you get into trouble. I sort of struggled with that tremendously."