It's one thing to be certain, but you can be certain and you can be wrong.

These guys [Republicans] are the most crooked, you know, lying group I've ever seen.

I personally didn't see personal atrocities in the sense I saw somebody cut a head off or something like that. However, I did take part in free-fire zones, I did take part in harassment and interdiction fire, I did take part in search-and-destroy missions.

I'm fascinated by rap and by hip-hop. I think there's a lot of poetry in it. There's a lot of anger, a lot of social energy in it. And I think you'd better listen to it pretty carefully, 'cause it's important.

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

[Bashar] Assad himself has said on several occasions recently that if the people of Syria don't believe I should be there in the future, then I would step - I would leave. He has said it. He has, on occasion, hinted that he wants a political settlement of one kind or another. I think it's up to his supporters, his strongest supporters, to make it clear to him that if you're going to save Syria, Assad has made a set of choices - barrel bombing children, gassing his people, torturing his people, engaging in starvation as a tactic of war.

[Bashar] Assad has made a series of choices ever since then that is literally destroying his country.