Susan Rice: “I will always, on behalf of President-elect Obama and in cooperation with Secretary-designate Clinton, stand up for and…”

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

Contrast that, as you did in your opening with Donald Trump, who is so profoundly dangerous, he is not committed to democracy at home or abroad, he embraces dictators.

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…

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