I think that you will see some significant changes in the [Donald] Trump administration.

Iran has proxies in Yemen, Syria, Iraq. You can push back against Iran without pulling out of the deal.

t I think what [James Mattis] will do with the deal is monitor it very, very carefully and make sure that Iran is complying with every stipulation of it.

[ General James Mattis] is a Marine's Marine who has served in combat in both Afghanistan and Iraq.

Given this president [Donald Trump] and his lack of military experience, I think it actually might be a good thing to have someone who understands the military very deeply to be counseling him.

[General James Mattis] a very talented individual. He's - has a personal library of about 10,000 books and he's read most of them on military history and strategy and so forth.

Certainly, we shouldn't go about making a habit of taking generals and making them secretary of defense.