US Trade Representative Jamieson Greer called for stability with Beijing days before US President Donald Trump’s closely watched trip to China, saying the US was not out to reshape the Chinese economy but to rebalance trade. The trade chief told Fox News on Friday that while the world’s two largest economies “always had a really robust trading relationship … it’s been wildly unbalanced with China exporting just vast amounts of goods to the United States and largely blocking a lot of US imports..