That's just protectionism under the guise of being pro-free trade.

One of Donald Trump's bugaboos is trade with China. On the Trump website it says "for free trade to bring prosperity to America, it must also be fair trade. Our goal is not protectionism but accountability."

And Hillary Clinton, in her nomination speech at the DNC, said "we should say 'no' to unfair trade deals... we should stand up to China."

Those dastardly Chinese just don't play fair!

Alleged currency manipulation is part of his objection to the Chinese. The Chinese renminbi was pegged to the dollar until 2005. There was considerable hue and cry in the States that the Chinese currency was overvalued. It was alleged that this created a trade imbalance.