Michael Bloomberg: “Trump says he wants to run the nation like he's running his business? God, help us.”

Somebody said, you know, that he's taller than me, he calls me Little Mike. And the answer is, Donald, where I come from we measure your height from your neck up. I am not afraid of Donald Trump. Donald Trump is ahead of us -- is afraid of…

There's no question about that. The COP21 agreement was designed in -- to favor America because the negotiators knew that it would be very hard, if not impossible, to get through an American Congress.

You have to have people in their lanes. You can't have all these different people with an ear to the president.

We could and should have acted sooner and acted faster to cut stops. I wish we had and I'm sorry that we didn't.