The biggest problem this world has today is not President [Barack] Obama with global warming, which is inconceivable, this is what he's saying. The biggest problem we have is nuclear - nuclear proliferation and having some maniac, having some madman go out and get a nuclear weapon. That's in my opinion, that is the single biggest problem that our country faces.
Donald TrumpJeb [Bush] doesn't really believe I'm unhinged. He said that very simply because he has failed in this campaign. It's been a total disaster. Nobody cares.
Donald Trump