Michael Bloomberg: “We need immigrants, but we should be choosing who comes here.”

The President's words matter more than anybody else. And his job, I've always thought, is to be a unifier, not to be the leader of the party, but to be a leader of this country. There are consequences to words.

There is one aspect - approach that I delete - deeply regret, the abuse of a police practice called 'Stop-and-frisk.' I defended it, looking back, for too long, because I didn't understand then, the unintended pain it was causing to young…

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.

It is a disaster. We have spent decades building trust and relationships, and the benefit of that is lots of people around the world, but Americans, we have not had a World War in 70 years.