Trump campaigned as somebody who was very skeptical of the multinational deals. He was supportive of Brexit. He was very skeptical of NATO. So what we saw of President Trump in Europe was what we saw of President Trump as a candidate.

The Donald Trump call in the president of Taiwan and of itself, as Henry Kissinger said, hasn't created some tremendous trouble in China. But what we don't know is whether this is just posturing or whether this is a policy change.

It was very clear, even from long before Donald Trump got in this race, when he would talk to Republicans, the number-one concern they had about Jeb Bush was whether he was too rusty for this, and whether he was going to be strong enough to stand up to Hillary Clinton.

The difference there is that the [Donald] Trump number on change is so much larger than the lead that the other two have in their lanes. And that's going to be the challenge for those other two going forward. The other challenge for Marco Rubio, and this assumption that you're just going to get all those Bush and Kasich voters.

Donald Trump is an unconventional president doing unconventional things. And the Trump phone call with the president of Taiwan is not something that the traditional establishment would see as a good idea to do, especially when there's not necessarily a policy behind it.

I still think there's some tension . But it's pretty clear that, when the president made his statements as a candidate, he's following through with those as a president.

Trump campaigned as somebody who was very skeptical of the multinational deals. He was supportive of Brexit. He was very skeptical of NATO. So what we saw of President Trump in Europe was what we saw of President Trump as a candidate.