As you travel through the Middle East what keeps on striking home to me is how similar everyone is, and yet the degree to which we can find differences to fight wars over. It requires a great deal of empathy, I think, between various sides to overcome this history and live in peace.

Our intelligence communities spend a lot of time and effort gathering a lot of strands and a lot of data [on Russian hacking]. There are times where they're very cautious and they say, "We think this is what happened, but we're not certain."

The market alone can't solve our health-care woes.

We are greater than the sum of our individual ambitions

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.

When it comes to telephone calls, nobody is listening to your telephone calls. That's not what this program is about. ... What the intelligence community is doing is looking at phone numbers, and durations of calls; they are not looking at people's names and they're not looking at content. ... If the intelligence committee actually wants to listen to a phone call they have to go back to a federal judge, just like they would in a criminal investigation.

People need to remember we are the governing party because we have diversity of opinion in our party. We're not pure. We have moderates and we have more progressives.