 The Loper-Bright case ending the Chevron deference to bureaucrats on interpretations of ambiguous statutes and regulation got the most attention and ire from the left. However, rulings in Jarquezzi, Corner Post, and Cargill all had the same thrust. Executive branch agencies can't make up their authority as they go along. Only Congress has the power to legislate, and only the judiciary has the authority to try common law cases and determine legal interpretations where Congress leaves gaps.