Historically, it is important to try to understand your adversary in order to figure out how they are thinking, what they will be doing, how they will react.

What we have to do... is to find a way to celebrate our diversity and debate our differences without fracturing our communities.

America already is great, but we are great because we are good, and we will respect one another, and we will work with one another, and we will celebrate our diversity.

It's very much in our interest to unite [with Bernie Sanders] as quickly as possible to begin the campaign against Donald Trump. And I think the facts really speak for themselves. I have a won a big majority of the popular vote of the states, of pledged delegates, and we want to go forward in a positive and unified way.

There is a great deal of political pressure to only talk about abstinence, and to deny support for condoms and education on using them. This policy will lead to the unnecessary deaths of many people.

What [Barack Obama] and I did was to say clearly what we're doing, all the bluster, all of the sanctions, that are just imposed by the American government haven't had much impact.Let's see if we can put together an international coalition to really cripple Iran, and then maybe we can begin a negotiation, and that's what I did. It was difficult. We had to get China and Russia on board, and not just get them on board by signing a piece of paper.

Donald Trump would send us back into recession with his tax plans that benefit the wealthiest of Americans.