I came in with a healthy skepticism about these programs. My team evaluated them. We scrubbed them thoroughly. We actually expanded some of the oversight, increased some of the safeguards. But my assessment, and my team's assessment was that they help us prevent terrorist attacks. In the abstract, you can complain about 'Big Brother' and how this is a potential program run amok. But when you actually look at the details, then, I think we've struck the right balance.

And if we walk away now, if we simply retreat into our respective corners, we will never be able to come together and solve challenges like health care, or education, or the need to find good jobs for every American.

Every president who has tried to bring about big changes I think elicits the most passionate responses.

I think that there's a power in that [information through tweets and sound bites ]. There's also a danger, what generates a headline or stirs up a controversy and gets attention isn't the same as the process required to actually solve the problem.

ISIS is a virulent, nasty organization that has gained a foothold in ungoverned spaces effectively in Syria and parts of western Iraq. We have to take it seriously. They've shown in Paris what they can do in an organized fashion.

The American people are not expecting miracles. I think if you talk to the average person right now that they would say, 'Well, look, you know well, we're having a tough time right now. We've had tough times before.' 'And you know, we don't expect a new president can snap his fingers and suddenly everything is gonna be okay. But what we do expect is that the guy is gonna be straight with us. We do expect that he's gonna be working really hard for us.'

Iran won't pursue nuclear weapons because 'it's contrary to their faith.'