The campaign was a more significant training ground than I think people give it credit for. By the time I got here, I think I had a pretty good sense of what was required. But the circumstances in which I came in were different than most executives, right? The enterprise was in the midst of a major crisis.

We had a farewell dinner for some of my senior staff, and generally everybody likes to talk about how cool I was.

My expectation would be that if we can begin discussions soon, shortly after the Iranian elections, we should have a fairly good sense by the end of the year as to whether they are moving in the right direction.

First of all, I think everybody has to acknowledge don't underestimate the guy [Donald Trump], because he's going to be 45th president of the United States.

The boarded-up homes, the decaying storefronts, the aging church rolls, kids from unknown families who swaggered down the streets - loud congregations of teenage boys, teenage girls feeding potato chips to crying toddlers, the discarded wrappers tumbling down the block - all of it whispered painful truths.

Ultimately, peace is just not about politics. It's about attitudes; about a sense of empathy; about breaking down the divisions that we create for ourselves in our own minds and our own hearts that don't exist in any objective reality, but that we carry with us generation after generation. And I know, because America, we, too, have had to work hard over the decades, slowly, gradually, sometimes painfully, in fits and starts, to keep perfecting our union.

Look, first of all, the climate is changing. I don't think the science is clear what percentage is man-made and what percentage is natural. It's convoluted. And for the people to say the science is decided on, this is just really arrogant, to be honest with you, it's this intellectual arrogance that now you can't even have a conversation about it. The climate is changing, and we need to adapt to that reality.