Russians understand strength, and if they feel that their opponents are weak, they will take advantage of it.

Companies should be able to share specific threat information with the government without the prospect of lawsuits hanging over their head.

Clearly, Russia has lied to the world about what's going on in Ukraine. They have clearly violated the cease-fire agreements.

The one thing that I remember from all of my intelligence briefings and my dealings with the Russians is that when you deal with the Russians, you have to deal with them from strength, not from weakness.

In the zero-sum budget game, every dollar spent on this problem [illegal immigration] must be taken from somewhere else....No, we should not tolerate people immigrating illegally. But we need to treat this issue honestly and fairly.

My impression is that Putin feels that he can basically manipulate the West to do what he ultimately wants to achieve, and that he feels he's gotten away with it so far, and that all he has to do is basically play the same game.

I think the primary message to the world is that the United States is going to remain the strongest military power in the world.