This article challenges the optimism common to liberal IR and IL scholarship on the ‘rule of law’ in global governance. It argues that the concept of the ‘rule of law’ is often employed with sparse inquiry into the politics of its practical meaning. Specifically, the article focuses on liberal research that advocates the emergence of a ‘global’ judiciary, and the claim that judicial governance will marginalize state power and authority. Rather than employ a zero-sum conception of power, this article regards a prospective global legal system less as a constraint on state power and more as a rationale for rule ‘through’ law by vested actors. To make the argument, Michel Foucault’s concept of ‘governmentality’ is combined with Barnett and Duva...