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.

The people that Donald Trump is putting around him on the Cabinet suggest that he's putting together a very conservative, almost traditionally conservative Republican group around him.

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

Most important, you can have a war room, you can have a war plan, but if your general - in this case, it's Donald Trump - isn't following the plan and is tweeting or is going and giving interviews that contradict the plan, then none of this really matters.

I think you still have a problem here when you're going and you're looking not just that Trump is winning, but he's winning in a broad swath of voters. It's not just that he's got this one lane, oh, he only wins when there's low turnout, he only wins when conservatives, he only wins in these kinds of states. He wins enough across a broad array.

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.

Usually, you do a shakeup because you know that you have a problem or you gaps and you're going to fill those gaps.