I do not support a civil war. I don't want to be policeman of the world. But we can't back off of this.

We have to go massively, like we did in the first Gulf War where we destroyed Saddam's ability to take Kuwait. We need to have a coalition that will stand for nothing less than the total destruction of ISIS and we have to be the leader.

A great power has to have the discipline not only to go when necessary but to know when not to go. Getting involved in ethnic, religious civil wars is a recipe for disaster.

Donald Trump done a lot of name calling, and he created a very toxic atmosphere. I mean just we want to start with immigration, do you want to start with these things that he has said - you know, about Muslims. I mean, where it ends?

I think the process of being hopeful, being really opportunity oriented, not just in rhetoric but in action, showing that no one get's left behind, not just by talking about it but by doing it, I think is really a key [to political success].

You give up a lot to be in politics. And if you're not there to change the world I don't know what you're there for. I mean, it doesn't make any sense to me.

These are serious matters, and we can never let up on these sanctions [against Russia].