The modernist ideal of liberal constitutionalism affords jurisdiction a special place as the organizing principle behind the distribution of official state power. Nonetheless, little attention has been paid to the intricate spatial infrastructures that give jurisdiction its form. In this article, I argue that the complex architectures that undergird various jurisdictional registers combine to segment material and virtual landscapes into historically specific, multilayered geographies of discretion, dictating where, when, and to whom various institutions are permitted to speak the law. Looking to politicized litigation and advocacy over the rights of Haitian asylum seekers in the United States, I demonstrate how battles over jurisdictional cartographies can both instantiate and remake the spatiality of nation‐states and the cosmologies of liberal sovereignty on which they rest.