Perdue says Trump will act to soften ethanol-waiver impact

U.S. Agriculture Secretary Sonny Perdue said Wednesday that President Donald Trump plans to soften the blow to farmers after his administration allowed some small oil refineries to avoid ethanol requirements.U.S. farmers have been suffering from wet spring weather and Trump's escalating trade war with China.Corn producers were heartened earlier this summer when Trump announced he would allow year-round sales of a 15% blend of ethanol in motor fuel, up from the more-common 10% blend, ending a sum