SCOTUS was right to smack down the EPA in WV v EPA, as P&C detail in this episode.
The world is simply too complicated for the morons in Congress to legislate all the details. They have to set policy goals, and allow people — (1) with brains, and (2) who aren’t distracted by committee arguments over whether a man can get pregnant — to work out the finer points.
That’s all well and good.
But when administrative agencies try to set national policy, they’ve gone too far.
That’s precisely what the EPA did with their Clean Power Plan, and SCOTUS was right to tell them to soak their heads.