PUBLIC RIGHTS, PRIVATE PRIVILEGES, AND ARTICLE III John Harrison* This Article addresses the constitutional justification for adjudication by executive agencies that rests on the presence of a public right. The public rights rationale originated in the nineteenth century and was for many decades the dominant explanation for the performance of adjudicative functions by executive agencies. The U.S. Supreme Court most recently relied on that rationale in Oil States Energy Services v. Greene’s Energy Group in 2018. In light of the Court’s interest in the nineteenth century system, this Article explores that system in depth and seeks to identify the ways in which it authorizes and limits executive adjudication. The nineteenth century system focu...