The bottom line is this - whereas Iran was steadily expanding its nuclear program, we have now cut off every single path that Iran could have used to build a bomb.

My conviction is that those fights need to be fought right now and can be won. And if in fact we have finite political capital, energy, resources, we need to win those fights.

I think the most important thing for the public and the press is to just listen to what Donald Trump says and follow up and ask questions about what appear to be either contradictory or uninformed or outright wacky ideas.

I was watching a documentary that during the Bay of Pigs crisis JFK had about two weeks before anybody reported on it. Imagine that. I think it's fair to say that if something like that happens under a current president, they've got to figure out in about an hour what their response is.

Today, we are closer to fulfilling America's promise of economic and social justice because we stand on the shoulders of giants like Dr. King, yet our future progress will depend on how we prepare our next generation of leaders. We must fortify their ladders of opportunity by correcting social injustice, breaking the cycle of poverty in struggling communities, and reinvesting in our schools. Education can unlock a child's potential and remains our strongest weapon against injustice and inequality.

I have always had extraordinarily good relations with very conservative colleagues. And that's not because I agree with any of them or fudge on my positions, but people feel I listen to them and give them the benefit of the doubt. I assume the best of people. And that, I think, is an attitude that is maybe rare in politics.

It's not surprising then they get bitter, they cling to guns or religion or antipathy to people who aren't like them, or anti-immigrant sentiment, or anti-trade sentiment, as a way to explain their frustrations.