The Trump administration on Friday lifted restrictions on the sale of higher ethanol blends of gasoline, keeping a campaign promise to farmers suffering from the trade war with China but drawing a legal threat from the oil industry.  The announcement will allow gasoline stations to sell blends containing up to 15 percent corn-based ethanol, called E15, year-round, ending a summertime ban that President Barack Obama’s Environmental Protection Agency imposed in 2011 to reduce smog pollution. “As President Trump promised, EPA is approving the year-round sale of E15 in time for summer driving season,” EPA Administrator Andrew Wheeler said in a press release. In a nod to the oil industry, the agency also issued new rules […]