US supreme court may revive doctrine that would curb federal agencies’ power

Case on nondelegation doctrine comes after conservative court substantially curbed regulatory power in recent years

The US supreme court may soon revive an obscure, pro-big business legal doctrine that could make it virtually impossible for the US government to develop new laws and regulatory rules that protect Americans.

The theory, called the nondelegation doctrine", could also potentially invalidate large pieces of bedrock American laws and protections put in place since the first Congress.