Author and blogger Andrew Sullivan fears the Republican candidate's rise is "an extinction-level event" for democracy.

Bill Moyers sits down with Mortimer Adler to discuss an array of topics, including: Aristotle, Marx, adult education and happiness and Adler's book, Aristotle for Everybody.

The author of the literary classic Catch-22 joins Bill Moyers to talk about democracy, American politics and why he hasn't voted in 20 years.