The Supreme Court’s decision in United States v. Arthrex opens a window on a set of issues debated in different contexts for decades. These issues—how to interpret statutes and constitutional provisions, what sources to look to, whether so far as possible to adopt interpretations that avoid declaring actions of coordinate branches unconstitutional, and where such actions are deemed to have been unconstitutional whether to provide remedies that cabin the most significant implications of such a declaration—go to the heart of the judicial role and the division of responsibilities among the branches of government. Our principal focus, however, is on the question of remedy. When the Court’s members find that a plausible—really, the most plausibl...