Michael Bloomberg: “The president just has to get it out of his mind, stop tweeting and focusing on running the government.”

There's just enough is enough. You see people who have been big gun rights advocates all of a sudden saying, well, we can't keep doing this.

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.

I want you to know they realize that back then, I was wrong. And I'm sorry.

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.