With prior Republican nominees for president, I disagreed with them on politics, policies, principles, but I never questioned their fitness to serve. Donald Trump is different.

I'm sick and tired of people who say that if you debate and disagree with this administration, somehow you're not patriotic, and we should stand up and say, "We are Americans and we have the right to debate and disagree with any administration!"

I've heard [Bernie] Sanders comments, and it's really caused me to wonder who's left in the progressive wing of the Democratic Party. Under his definition, [Barack] Obama is not progressive because he took donations from Wall Street; [Joe] Biden is not progressive because she supported Keystone; [Jeanne] Shaheen is not progressive because she supports the trade pact. Even the late, great Paul Wellstone would not fit this definition because he voted for DOMA.

There is such a bias against people who have led successful and/or complicated lives. You know, the divestment of assets, the stripping of all kinds of positions, the sale of stocks. It just becomes very onerous and unnecessary.

On healthcare we are the prisoner of our past. The way we got to develop any kind of medical insurance program was during World War II when companies facing shortages of workers began to offer healthcare benefits as an inducement for employment. So from the early 1940s healthcare was seen as a privilege connected to employment. And after the war when soldiers came back and went back into the market there was a lot of competition, because the economy was so heated up.

Asking Saudi Arabia and Iran to work together, when they can't stand each other and are engaged in a proxy battle right at this moment.

[Donald] Trump is obsessed with name calling.