The goal of this office will not be to favor one religious group over another - or even religious groups over secular groups. It will simply be to work on behalf of those organizations that want to work on behalf of our communities, and to do so without blurring the line that our founders wisely drew between church and state.

We've got to identify new strategies to use cleaner energy, because that is a recipe for reducing the overall amount of pollution that's out there.

Toughest decision was early in my presidency when I ordered 30,000 more troops into Afghanistan. As somebody who had run to end a large troop presence overseas.

The day I'm inaugurated, this country looks at itself differently and the world looks at America differently. If you believe that we've got to heal America and we've got to repair our standing in the world, then I think my supporters believe that I am a messenger who can deliver that message around the world in a way that no other candidate can do.

I think part of the reason that I have been successful, though, despite maybe not always fitting my message into the pre-packaged formulas, is there is this whole other media ecology out there of the Internet and Instagram and memes and talk shows and comedy, and I'm pretty good at that.

I believe in term limits for presidents because I think that there is no doubt I'm a better president now than I was when I start. I would argue that I am the best president I've ever been over the last year or two. My team is more effective than it's ever been.But what is also true is that number one, this is grueling.

I changed those things that were in direct - my direct control. I mean, I - look, I'm proud of the fact that, with two weeks to go, we're probably the first administration in modern history that hasn't had a major scandal in the White House.