A lot of conservatives, a big part of the Republican base don't like his position on common core, don't like his position on immigration.

There are important questions about protecting and securing the border, but we don't need to build a wall.

I think Republicans really need to be disciplined, to stay focused on sustained economic growth.

I used to be a conservative.

We need to embed our forces - our troops inside the Iraqi military. We need to arm directly the Kurds. And all of that has to be done in concert with the Arab nations.

I don't wake up each morning saying, 'Oh, wow, it's me. I think I'm the cat's meow. I'm the best.'

A strategy would be how do we mobilize support for the remnants of the Syrian Free Army, and it might require combat troops to inspire an international effort.