Mitt Romney says he believes in America and that he will restore American exceptionalism. I have news for him, we already have an exceptional American as president and we believe in Barack Obama.

[Bashar] Assad has made a series of choices ever since then that is literally destroying his country.

How do you ask a man to be the last man to die in Vietnam? How do you ask a man to be the last man to die for a mistake?

We are a nation of laws and liberties, not of a knock in the night. So it is time to end the era of John Ashcroft. That starts with replacing the Patriot Act with a new law that protects our people and our liberties at the same time.

Those who doubted whether Iraq or the world would be better off without Saddam Hussein, and those who believe today that we are not safer with his capture, don't have the judgment to be President.

If we can't have a serious conversation without politicizing it on cable TV and making it a scoring point for one day, we're in trouble.

I think as we celebrate the 70th anniversary of the UN, it's a good moment to rekindle our efforts to make multilateralism work yet again. And I'm proud to say that in the Iran agreement I think we did show that it can work.