The main U.S. refining industry association said on Monday it sued to block the Trump administration’s effort to expand sales of higher ethanol blends of gasoline, arguing the move exceeded the administration’s authority. The legal challenge from the American Fuel and Petrochemical Manufacturers (AFPM) association escalated a battle between the oil and corn industries over the nation’s biofuel policy, which requires refiners to blend biofuels like corn-based ethanol into their gasoline, often at great expense. President Donald Trump had directed the Environmental Protection Agency to lift a summertime ban on the sale of gasoline containing 15 percent ethanol, called E15, in an effort to help farmers suffering from the U.S. trade war with China. The EPA unveiled its rule doing so on […]