The really big problem with China is that there are the unfair trade practices, like currency manipulation, illegal export subsidies and the theft of intellectual property, but then there's also things that the WTO doesn't cover that it should, which is the use of sweat shops and pollution havens.

In my movie, "Death By China," it shows Bill Clinton in 2000 promising that when China got into the World Trade Organization we would be making products here and selling them there, and life would be great. Just the opposite has happened. And here's why this has been so devastating - China went into the World Trade Organization and agreed to play by certain rules. Instead, it's violated these rules. For 15 years, it continues to illegally subsidize its exports.

China are running trade deficits with the rest of the world. If you look at the U.S. trade deficit, it's close to $800 billion trade in goods. Half of that is with China, so it's a big part of the problem. And the problem with China, as opposed to, say, Canada, is that China cheats.

Donald Trump understands China influence. He's been talking about it since 1980. He understands it. The people that are on the other side of this, including his opponent, Hillary Clinton, have been part of every bad trade negotiation we've had since 1993.

This is what Donald Trump understands. This is the trade deficit. We run a trade deficit of close to $800 billion a year.

The defining moment in American economic history is when Bill Clinton lobbied to get China into the World Trade Organization. It was the worst political and economic mistake in American history in the last 100 years.

Donald Trump is not a protectionist. If he imposes tariffs on China or any other country that cheats, all he wants to do is defend America against unfair trade practices.