Trump on communism: It's not socialism; it's really communism. They use the word "social democrat" because it sounds so nice, but it's really communism you're talking about. I think it's the biggest threat to our nation there is, maybe since our founding. That includes World War I, World War II, September 11th, and it includes the Pearl Harbor attack. I think this is the biggest threat to our nation. People will smile when I say that, but the smart people are going to say, "You know, he's probably right." It's basically introducing communism into the United States of America. There's never been anything so dangerous.