The thing that keeps me awake at night is a nexus between terrorism and massive destruction...the possibility that a terrorist organization could either acquire a ready-made weapon or fabricate something improvised that would have a catastrophic effect for us.

[James Mattis] is a student of history. He's a strategic thinker.

General James Mattis is a storied and much-respected military leader.

The thing that keeps me awake at night is a nexus between terrorism and massive destruction...the possibility that a terrorist organization could either acquire a ready-made weapon or fabricate something improvised that would have a catastrophic effect for us.

[James Mattis] also has real passion for the care of the men and women in the U.S. military and their families. So, you know, I think he would be an outstanding candidate.