The issue that is Scott Pruitt's dedicatino to states' rights is the debate over emissions and fuel economy standards for cars and light trucks. In the dying days of the Obama administration, the EPA published a “midterm evaluation” of emissions standards that were planned to become increasingly stringent out to 2025. That review concluded that the proposed regulations would cut oil use and pollution, providing significant benefits for the public, and were achievable by the car industry. The manufacturers disagreed, arguing that the conclusion had been rushed. They warned of job losses as a result of the higher standards, and called for a longer review, and the Trump administration agreed.