Environmental Protection Agency Administrator Scott Pruitt’s proposal to repeal the so-called Clean Power Plan is the most notable step President Trump and his team have taken to date to end the Obama administration’s unlawful and economically destructive war on affordable energy.

Although there is no shortage of policy reasons to repeal the Clean Power Plan, which promises lots of economic pain for no discernible environmental gain, Pruitt is proposing repeal chiefly because the plan exceeds the legal authority delegated to the agency by Congress.