As co-host of the hit show “Penn & Teller: Bullshit!” Penn Jillette never seems to hold back on telling us the audience how he really feels about everything from gun control to the drug war to college. Why is Penn Jillette a libertarian? Watch the video.
According to Wikipedia
Penn Fraser Jillette (born March 5, 1955) is an American illusionist, comedian, musician, inventor, actor, and best-selling author known for his work with fellow magician Teller in the team Penn & Teller. He is also known for his advocacy of atheism, scientific skepticism, libertarianism and free-market capitalism.