Should Liberals Support Ron Paul?

Prominent people on the left, including Glenn Greenwald and Robert Scheer, have been saying very nice things about Ron Paul. Others on the left, such as Katha Pollitt, have been taking them to task for it. The question raised by Pollitt and others isn't just about the infamous newsletters that went out under Paul's name, or whether Paul did or didn't vote for a Martin Luther King holiday. The larger question is whether his ideology has enough overlap with modern liberalism to warrant the support of liberals. In a new Bloggingheads dialogue, liberal Tim Noah and libertarian Matt Welch debate the question: 

If you want to see Noah and Welch discuss why those Ron Paul newsletters haven't done more to undermine Paul's standing among his young supporters, here's that part of the dialogue.