Even on Ben Carson, he's not exactly steeped in housing policy, but his statements on the issue have also been very conservative.

If you're Chris Christie, who is governor of New Jersey, a state that obviously was impacted by 9/11, this gives you an opportunity to talk about how, as governor, you had to deal with terrorism and security issues.

It's never a good time, when you're the president of the United States and your own party is finding lots of different ways to distance themselves from you.

Lots of people coming in and out the Trump Tower, not necessarily indicative of what Donald Trump policy is going to be. To have Al Gore one day, and the next day the head of ExxonMobil, what does that - what are you supposed to read into that about his stance on climate change? So, I think, again, it's going to be that the actions that he takes are significant.

When Jeb Bush came on the shows and couldn't answer questions about Iraq, and when he looked like he was unsteady, it absolutely solidified the concerns that they had had all along about his skills.

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.

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.