The role of money in politics is terrible, particularly when you're running for president. You get a handful of billionaires who can basically buy the White House.

Frankly, we are republicans and they're democrats but before all of that, we're Americans. And I believe we need to unify in so many ways to rebuild our country, to strengthen our country, to rebuild our defense, and for America to secure it's place it world; for us, for our children, and for the next generation.

I do believe that the party needs to evolve, or I won't be a part of it.

Frankly, we should publicly increase them [ anti-Russian sanctions ].

I was the chairman of the Budget Committee and the lead architect the last time it happened in Washington, and when we did it we had great economic growth, we cut taxes, and we had a big surplus.

I was a member of the Armed Services Committee for 18 years. I spent a big chunk of my life studying national security issues and our role in the world.

I worry about America. For the first time in my lifetime, I'm worried about us, i'm worried about how our values to some degree have been eroded, of personal responsibility and compassion and teamwork. I worry about it, I worry about the fact that we're so divided.