It is mostly a matter of wills. Whose will is going to break first? Ours or the enemy's?

Ultimately, a real understanding of history means that we face NOTHING new under the sun.

The American people and the American military will never get used to civilian casualties. And we will - we will fight against that every way we can possibly bring our intelligence and our tactics to bear. We're not the perfect guys, but we are the good guys.

Nothing keeps me awake at night. I keep other people awake at night.

I'm from the American West. We have forest fires out there. And some of the worst forest fires in our history, the most damage were caused when we pulled the fire crews off the line too early. And so we're going to have to continue to keep the pressure on the enemy - ISIS. There's no room for complacency on this.

Congressman [Mike] Pompeo said he believes the intelligence agencies' claims that Russia hacked the US election.

There is nothing better than getting shot at and missed. It's really great.