Quad-City Times: The Trump administration raised the prospect Tuesday that it will reduce the amount of renewable fuels to be blended into the nation's fuel supply next year. The warning came from the Environmental Protection Agency, which sought public comment on the possibility of using executive authority in the Clean Air Act to lower requirements across a range of renewable fuels. Agriculture interests had been pushing for an increase in volumes. "It’s outrageous that the EPA would change course and propose a reduction in renewable fuel volumes," Sen. Chuck Grassley, R-Iowa, said in a statement.