Under economics, supply and demand are intricately related. However, the U.S. Congress practices politics and not economics. S&D Inseparable Under economics, supply and demand are intricately related. However, the U.S. Congress practices politics and not economics. Consequently, the U.S. Court of Appeals rejected U.S. EPA’s decision in 2016 to reduce the mandatory level of biofuel blending due to the market’s structural (blend wall) inability to deliver the amount of fuel required by statute. The courts interpret congressional intent, and the legislative body had specifically considered and then dropped the distribution capacity issue from the law being developed. It is an awkward application but one supported by the biofuel industry...