In a letter to President Donald Trump this week, the U.S. Grains Council (USGC), Renewable Fuels Association (RFA) and Growth Energy are asking for help “in urgently addressing China’s recent implementation of protectionist trade barriers that are shutting out U.S. exports of ethanol and distillers dried grains (DDGS).” Specifically, the three groups are asking the incoming U.S. Trade Representative to put …