Is free trade causing job loss?

International trade figures heavily in the presidential race. Presidential candidate Donald Trump said, "Hillary Clinton unleashed a trade war against the American worker when she supported one terrible trade deal after another – from NAFTA to China to South Korea." And adding, "A Trump Administration will end that war by getting a fair deal for the American people. The era of economic surrender will finally be over." He lamented, "Skilled craftsmen and tradespeople and factory workers have seen the jobs they love shipped thousands and thousands of miles away."
Hillary Clinton has offered her own condemnations of trade and globalization. Some see her stance on trade as little more than typical campaign rhetoric. Bill Watson's Reason magazine article "Hillary Clinton's Protectionist Promises Would Do Serious Economic Damage," looked at Clinton's trade agenda. Watson concluded that for "fans of free trade and globalization, Clinton is a much more appealing candidate simply by not being horrible."