Ruling says congress has not specifically told the e p a that it can create a programme that reconfigures the energy sector. The major questions doctrine requires congress to specifically authorize new policies or regulations, even when language of a statute gives the agency broad power. Justice cagan said in dissent, the court's docket is discretionary. It didn't have to take this case. There is no reason to reach out and decide it. She says the ruling is really an advisory opinion on the proper scope of the new rule the e pA is considering.