My brand of leadership, which is very focused on bringing people together, solving problems - it's what I have always tried to do - just had a hard time being as powerfully compelling in the campaign as I think it has been in previous years for other candidates.

Right now - and this is something Donald [Trump] has supported, along with the gun lobby - right now, we've got too many military- style weapons on the streets. In a lot of places, our police are outgunned. We need comprehensive background checks, and we need to keep guns out of the hands of those who will do harm.

We came out of the White House not only dead broke, but in debt.

Somebody who attacks everybody has something missing.

I'm going to stand up for what [Donald Trump] says and does that is threatening to Americans, to the lives of Americans, the rights of Americans.

That is the number-one threat we face in the world. And it becomes particularly threatening if terrorists ever get their hands on any nuclear material. So a man who can be provoked by a tweet should not have his fingers anywhere near the nuclear codes, as far as I think anyone with any sense about this should be concerned.

Donald Trump thinks belittling women makes him bigger. We need to stand up and be clear that we don't want this, we need to celebrate diversity. America is great because America is good.