We're living in a technological world. You cannot tell me we can't do a better job getting that information.

The nuclear arsenal that Pakistan has, I believe is secure. I think the government and the military have taken adequate steps to protect that.

I have proposed I would not add a penny to the debt and [Donald Trump] plans would add $5 trillion to the debt.

My dream is a hemispheric common market, with open trade and open borders, some time in the future with energy that is as green and sustainable as we can get it, powering growth and opportunity for every person in the hemisphere.

It was outrageous that [Donald Trump] would be advocating [that] women who exercise their constitutional right and have autonomy over their healthcare decisions would be criminals, along with the doctors that served them. He did try to walk it back - I think pretty unconvincingly.

I want to congratulate Senator [Bernie] Sanders for the extraordinary campaign.... He has spent his long career in public service, fighting for progressive causes and principles, and he has excited millions of voters, especially young people.

You know, NATO as a military alliance has something called Article 5, and basically it says this: An attack on one is an attack on all. And you know the only time it's ever been invoked? After 9/11, when the 28 nations of NATO said that they would go to Afghanistan with us to fight terrorism, something that they still are doing by our side.