Sen. Ted Cruz, R-Texas, and House lawmakers upped the pressure on President Trump to make a decision soon on a way to save oil refineries from the costs of meeting the Environmental Protection Agency's ethanol mandate. “The president can solve this with the stroke of a pen,” the Texas Republican said Thursday afternoon, joined by refinery workers and the steelworkers union. “It is the EPA that can do it,” but Trump must direct it to do so, he added.Cruz's "win-win" solution would place a cap on the cost of renewable identification number credits that independent refiners must buy to comply with the Renewable Fuel Standard's ethanol mandate.