Susan Rice: “The killing of Soleimani will require from the Iranian perspective a clear and definitive retaliation. And that…”

When the people closest to you say you're unfit to lead, that's very, very concerning and dangerous.

It would not have teeth in the sense of it being enforceable. And that's why what happens in Washington matters so much.

But this summit meeting really ought to be tackling the toughest issues facing the world today, top of the list being the grave risks posed by rapidly accelerating artificial intelligence, as well as what's going on in Ukraine, what's…

I take that very seriously, and I think we all should.