 One rejects a settlement with Purdue Pharma that was challenged. It would have shielded members of the Sackler family that owned the OxyContin painkiller drug maker from civil lawsuits over opioid overdoses. The court also put a block on an environmental regulation, the EPA's so-called Good Neighbor Rule, restricting cross-state pollution. The rule intended to restrict smokestack emissions from power plants and other industrial sources and now remains on hold, while a federal appeals court considers a challenge from energy-producing states.