For the Democrats, they're trying to avoid having the Sanders-Clinton debate over and over again. But, to some degree, they're sentenced to that debate. Clinton is much more embracing of the global economy and the international world order. Sanders and Warren are much less so. And they have got to figure out which side the party is on, if they're going to have a clear message. I think this is probably one you probably can't straddle.

If I were Donald Trump, I would definitely not pick Mitt Romney because it's very easy for Mitt Romney to have have a separate foreign policy operatus in the State Department that would run a dissenting foreign policy from the White House foreign policy. There, I think the populist America-first foreign policy of Donald Trump does run against a potential rival.

Donald Trump is this whirling dervish of chaos. He picked a fight with Mexico. Germany is not far behind. He will pick a fight with them. He will pick a fight with China, which would be truly cataclysmic.

Donald Trump just needs the ego fed all the time.

People have been raised in a morality that says, "If it feels all right for you, it's probably OK."

I think the Republican budget priorities are messed up. I salute for the way they're attacking some of the entitlement programs, but they are taking huge cuts, by pretending they're just block-granting it to the states, out of Medicaid, from the least fortunate.

I have come to think we have to treat Donald Trump's tweets like Snapchat. It's just something that is going to go away. And it flies out of some region of his brain and it goes out into the ether. And usually it's on the realm of media.