I think it is very possible he [Donald Trump] could be nominated and depending on how this all plays out, I would take him seriously in terms of being able to win because he's appealing to a very, very - he's appealing to fear.
Presumptuous for me to say, but at least - at a minimum - I've been able to influence the direction of the Democratic Party on foreign policy. And I've been relatively - presumptuous to say - relatively successful legislatively in the Senate, being able to win a lot of Republican friends, and being able to cross the aisle.
Donald Trump is appealing to, that whole expression, everybody who asked me, why is Trump able to win in those 16 people? There's a whole expression. In the land of the blind, the one-eyed man is king. I'm not very good at prognosticating but I would not be surprised if he's the nominee.