Climate change constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.

The surest path to success is to surround yourself with brilliant women

I have never had to travel more than thirty seconds from home to office, and it's because of that that I've been able to maintain, really a family life that has nurtured and sustained me during this time [of presidency].

But the basic principle that we’re going to have to see some of this debt written down, that the government is going to have to support some banks, that others that are not viable, essentially that we’re going to have to do something with those assets.

Our intelligence communities spend a lot of time and effort gathering a lot of strands and a lot of data [on Russian hacking]. There are times where they're very cautious and they say, "We think this is what happened, but we're not certain."

We're not going to baby sit a civil war.

I'm not the strapping young Muslim socialist that I used to be.