What Donald Trump is doing is serving the polluters and serving a narrow group of ideological interests. That's not leadership. That's abdication of responsibility, and this step does not make America first. It makes America last.

So the threat of Saddam Hussein with weapons of mass destruction is real.

Too many people in America believe that if you are pro-choice that means pro-abortion. It doesn't. I don't want abortion. Abortion should be the rarest thing in the world. I am actually personally opposed to abortion. But I don't believe that I have a right to take what is an article of faith to me and legislate it to other people. That's not how it works in America.

I think the question of abortion is one that should be left for the states to decide.

American can do better, and help is on the way.

We have to create a process which has legitimacy for the people of Syria. And we have to have a process where the Russians and the Iranians and the neighbors - all of them, Saudis, Turks, Qataris, a very complicated brew - that you have to bring them together and they can find agreement. That's the fundamental premise of the Geneva Communique that you will have, by mutual consent, a process of transition.

There is no bigger judgment for a president of the United States than how you take a nation to war.