President Trump and his appointees, particularly Environmental Protection Agency Administrator Scott Pruitt, have made federalism a theme of their efforts to scale back environmental regulation. They argue that the federal government has become too intrusive and that states should be returned to a position of “regulatory primacy” on environmental matters. “We have to let the states compete to see who has the best solutions. They know the best how to spend their dollars and how to take care of the people within each state,” Trump said in a speech to the National Governors Association last February.

Citation
Michael A. Livermore, Why Shifting Regulatory Power to the States Won’t Improve the Environment, Conversation (August 2, 2017).