I would have I think made a bigger mistake if I had said, "Eh, chemical weapons. That doesn't really change my calculus." I think it was important for me as president of the United States to send a message that in fact there is something different about chemical weapons [in Syria].

What is certainly true is that the United States has to have a presence to promote the values that we care about.

I think that the FDA has not been able to catch some of these things as quickly as I expect them to catch and so we’re going to be doing a complete review of FDA operations. At bare minimum, we should be able to count on our government keeping our kids safe when they eat peanut butter. That’s what Sasha eats for lunch. Probably three times a week...

Look, first of all, the climate is changing. I don't think the science is clear what percentage is man-made and what percentage is natural. It's convoluted. And for the people to say the science is decided on, this is just really arrogant, to be honest with you, it's this intellectual arrogance that now you can't even have a conversation about it. The climate is changing, and we need to adapt to that reality.

I'm always suspicious of politics dividing people instead of bringing them together.

Tonight, let us think back to the sense of unity that prevailed on 9/11.

When our sailors in the Persian Gulf accidentally strayed into Iranian waters, that could have sparked a major international incident. Some folks here in Washington rushed to declare that it was the start of another hostage crisis. Instead, we worked directly with the Iranian government and secured the release of our sailors in less than 24 hours.