I'm not much into speculation.

In the economy today, everybody understands that we need a well educated workforce. This is 2016. When we talk about public education, it can no longer be K through 12th grade. I do believe that public colleges and universities should be tuition free.

We've had a number of economists supporting our legislation. And here's where we are. The American people can judge. Six largest financial institutions in America today have assets of roughly $10 trillion; equivalent to 58 percent of the GDP of the United States of America.

I think in terms of who can be trusted, I think the evidence is clear that there has been no candidate that I have ever seen who lies more often than does Donald Trump. I mean and that's just not me saying it, that's what any independent media analysis has shown. So in terms of trust, you really can't trust a word, I think, that Mr. Trump has to say.

I think we should look to countries like Denmark, like Sweden and Norway, and learn from what they have accomplished for their working people.

Most people that I know don believe that a handful of corporations request sit together without disclosure, by the way, and pump hundreds and hundreds of millions of dollars into the political process. That is not the democracy that many of us believe America should be.

I'm not going to tell you I know George W. Bush intimately. I'm not going to tell you we're best friends. I'll tell you I met him on a number of occasions. You know what? George W. Bush is a very nice guy. Very funny guy. His wife is a very nice woman; I thought she was a great first lady. George [W.] Bush was the worst president in the history of the United States of America... The issue is not Bernie Sanders. The issue is the Koch brothers. The issue is who owns America.