Independent agencies are in the judicial crosshairs. Scholars criticize their efficacy—while still puzzling over how to define the form. By and large, this attention focuses on the top of the agency hierarchy, the extent to which agency heads are insulated from presidential control. What this perspective misses, however, is that power is also exercised by tenure-protected civil servants below. This phenomenon exists not because Congress has delegated them authority, but because executive branch actors have. Consequently, there exists another species of independent agency that requires a reckoning: call them “submerged independent agencies.” These entities are “agencies” because they wield discretionary governmental authority. They are “inde...