We have to solve the encryption problem. It is not easy.

Libya was a terrible mistake. You know, frankly, that's something that people ought to be thinking about in regard to Hillary [Clinton]. You know, they talk about Benghazi, which is very legitimate. Of course it is. But we should never have deposed [Muamar] Gaddafi. That was a terrible mistake.

The best way to build anything is to build it together and build it with diversity, because then you really get good ideas about how to be strong. And you need a strong foundation, which brings about the notion that all of us in the neighborhoods, I still consider myself to be one of them.

If you look even at Pittsburgh, where I grew up, you've now replaced steel jobs with technology jobs, and they pay better.

There is a difference between Iraq, where you have Sunni, Shia, and Kurds put together after the First World War by the Western powers. It doesn't work. It needs to break up into three parts.

[Donald] Trump is touching a nerve because people want the wall to be built. They want to see an end to illegal immigration. They want to see it, and we all do. But we all have different ways of getting there.

The role of money in politics is terrible, particularly when you're running for president. You get a handful of billionaires who can basically buy the White House.