I think Dona;d Trump is sincere in wanting to be a successful president and moving this country forward and I don't think any president ever comes in saying to himself "I want to figure out how to make people angry or alienate half the country."

So while I will never minimize the costs involved in military action, I am convinced that a failure to act in Libya would have carried a far greater price for America.

What makes [cyber security] difficult is because it's not just a government problem. It is a private sector and government problem. And there's gotta be a lot more cooperation.

What you saw was the people of New York having a debate, talking through these issues. It was contentious. It was emotional. But ultimately, they made a decision to recognize civil marriage. And I think that's exactly how things should work.

The one thing I've said to [Donald Trump] directly, and I would advise my Republican friends in Congress and supporters around the country, is just make sure that, as we go forward certain norms, certain institutional traditions don't get eroded, because there's a reason they're in place.

The United States is doing our part by increasing the number of refugees we resettle and I want again to commend Angela [Merkel], and more importantly, the German people for the extraordinary leadership and compassion that you have shown in the face of what I know is a very difficult challenge.

We have real enemies in the world. These enemies must be found. They must be pursued and they must be defeated.