Trump's “Trade War” Chaos with China — Who Benefits?

One day we're in a "trade war with China," and the next day we're not. One day, there are threats of "100% tariffs," on Chinese goods and the next day there aren't. World leaders need to do nothing but sit back and watch. Meanwhile, the American people are taken on an emotional roller-coaster of threats that (ironically) would harm the American people more than anyone else. What's going on here?