Donald Trump: “There's no reason for us to be building brand-new nuclear weapons. We already have so many, you could destroy the world…”

Do we want to go further with strikes to ensure Iran's nuclear program is dead and that it will never happen again?

Within the next two years, NASA will launch the first-ever nuclear-powered spacecraft to Mars.

Just this week, I issued the American Declaration of Freedom in Space, proclaiming all of space opened for American settlement, American civilization and American freedom.

Stephen's been with me from the beginning. He gets it, very good politically ... and he's a very good manager. He'll do a great job.