I believe we should have a full-court press diplomatic effort. If Trump doesn't want to listen to the experts inside his own government, then go to people outside in think tanks and academia who know about this very complicated region, and particularly North Korea.

I spent four and a half hours debating Donald Trump in three debates, which I think should put to rest any questions about my stamina.

One independent expert - actually, the economist who advised John McCain in 2008, so, you know, not somebody that has any predisposition toward our side - but this economist did a study. He said under [Donald] Trump's economic plans, we would lose in America 3 and a half million jobs.

Donald Trump is a - the owner of a lot of real estate that he manages, he may well pay no income taxes. We know for a fact that he didn't pay any income taxes in 1978, 1979, 1984, 1992 and 1994. We know because of the reports of the New Jersey Casino Control Commission. We don't know about any year after that.

I think people need to remember what the situation was when President [Barack] Obama came into office.

When I think about capitalism, I think about all the small businesses that were started because we have the opportunity and the freedom in America for people to do that and to make a good living for themselves and their families. And I don't think we should confuse what we have to do every so often in America, which is save capitalism from itself.

What Secretary Ash Carter is looking at is the constant pressure that Russia's putting on our European allies. The way that Russia is trying to move the boundaries of the post-World War II Europe. The way that he is trying to set European countries against one another, seizing territory, holding it in Crimea. Beginning to explore whether they could make some inroads in the Baltics.