Please don't suggest that I think we normalize relations with Tehran tomorrow. We don't. But I would like to see us move forward, and hopefully some day that will happen.

I want to know in this day and age, whether it is possible for any candidate who is not a billionaire or who is not beholden to the billionaire class, to be able to run successful campaigns.

Super PACs and a corrupt campaign finance system are destroying American democracy. We're proud that we have received four million individual contributions, more than any candidate in American history at this point.

I do believe that in the future, not by dismantling what we have here - I helped write that bill - but by moving forward, rallying the American people, I do believe we should have health care for all.

As a single-payer advocate, I believe that at the end of the day, if a state goes forward and passed an effective single-payer program, it will demonstrate that you can provide quality health care to every man, woman and child in a more cost-effective way.

I think, clearly, we got to work closely with China to resolve the serious problems we have, and I worry about Putin and his military adventurism in the Crimea and the Ukraine.

NAFTA, supported by the Secretary cost, us 800,000 jobs nationwide, tens of thousands of jobs in the Midwest. Permanent normal trade relations with China cost us millions of jobs. Look, I was on a picket line in early 1990's against NFATA because you didn't need a PhD in economics to understand that American workers should not be forced to compete against people in Mexico making 25 cents an hour.