Donald Trump gives profanity-laced "campaign" speech in Las Vegas

On Iraq: "We build a school, we build a road. They blow up the road, they blow up the school. ... In the meantime, we can't get a f---ing school built in Brooklyn."

On OPEC: "We have nobody in Washington that sits back and said, 'You're not gonna raise that f---ing price, you understand me?"

On China: "Listen you motherf---ers, we're gonna tax you 25%."

Donald Trump shifts his line of attack on Obama: Now release your college records

"I heard at Columbia [University], he wasn't a very good student. He then gets Harvard. How do you get into Harvard if you're not a good student? Now, maybe that's right or maybe it's wrong. But I don't know why he doesn't release his records."