I hope that this [hacking] does not continue to be viewed purely through a partisan lens.I think there are Republicans as well as Democrats who are concerned about this.

For decades, we've been told that it doesn't make economic sense to switch to renewable energy. Today, that's no longer true.

Money is not the only answer, but it makes a difference.

I'm asking you to believe. Not just in my ability to bring about real change in Washington . . . I'm asking you to believe in yours." Keeping faith with those who serve must always be a core American value and a cornerstone of American patriotism. Because America's commitment to its servicemen and women begins at enlistment, and it must never end.

[About his marijuana use] I did. It's not something that I'm proud of. It was a mistake as a young man, but you know? I mean not going to -- I never understood that line. The point was to inhale. That was the point.

It's no wonder that America's engagement in the region has strong, sustained, bipartisan support. So I'll be handing my successor a strong foundation - including closer ties with Singapore - on which to continue building, and I'm optimistic that will happen.

We start this new year in the midst of an economic crisis unlike we have seen in our lifetime.