Instead of gutting consumer protection, we should be expanding it.

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.

Now, I will say, most American companies - most are run by honorable patriotic people who care about their employees and communities. But there are still too many powerful interests fighting to protect their own profits and privileges at the expense of everyone else.

You don't walk away if you love someone. You help the person.

We are not going to let Donald Trump bankrupt America the way he bankrupted his casinos.

It just seems to me that this is something that the American people deserve to see. And I have no reason to believe that [Donald Trump] is ever going to release his tax returns, because there's something he's hiding.

Presidents should be very careful at all times in discussing the use or non-use of nuclear weapons. Presidents since the cold war have used nuclear deterrence to keep the peace, and I don't believe that any president should make any blanket statements with respect to the use or non-use of nuclear weapons.