Watch LookMovie. As the trade war between the U.S. and China escalates, FRONTLINE and NPR take a look at what led to the rising tensions and what’s at stake. “Trump’s Trade War” presents the inside story of President Trump’s gamble to confront China over trade. Reporting from the U.S. and China, FRONTLINE and NPR investigate what led the world’s two largest economies to the brink, and the billions at stake.