This paper aims to explore the impact of global governance on legal thinking by studying the case of global administrative law. Tracing global governance at the core of the international rule of law movement to the restructuring of legal landscape, I suggest that global administrative law underpinned by the underlying values of administrative law reflects a deliberately chosen approach to the new nomos of the earth in the global era. Distanced from the will of nation-states, the legality and legitimacy of global administrative are reconstructed around the idea of publicness, suggesting a new paradigm of law based on inter-public legality. I argue that under this new paradigm of law, political calculation displaces legal reasoning. Legality amounts to the dispensation of legal weight and is thus merged with politics. Given the non-public, interest-oriented character of dialogues in the politics of weighing, however, global administrative law suggests a post-public conception of legitimacy.