Sovereignty is usually seen as either the assertion of national rights in the face of external challenge or the cruel license of unaccountable power. In philosophy, sovereignty has been presented as the earthly manifestation of a potentially limitless, preexisting power, usually belonging to God. This divine sovereignty provides a model and the authority for worldly sovereignty. Yet, divine sovereignty also threatens the human by imagining power as transcendent, unquestionable, and potentially infinite. This infinity makes sovereignty endlessly disruptive and thus potentially infinitely violent. Engaging the complexities of sovereignty through the canon of political philosophy from Hobbes to Foucault and Agamben, Bastard Politics argues that there is no escaping this ambiguity. Nick Mansfield draws on Bataille and Derrida to argue that politics is sovereignty in action. In order to deal with the political challenges of the climate change era—including the enactment of global justice, the future of democracy, and unpredictable surges in population movement—we must embrace the possibilities of human sovereignty while remaining mindful of its dangers.