This chapter contends that the republican argument against judicial review is misplaced, illustrating this argument by reference to the doctrine of proportionality. Whereas constitutional rights are often understood as placing fixed limits on politics, transcending historical and political contingencies, the doctrine of proportionality in particular enables the understanding of constitutional adjudication as accounting for the instability, the contestability, and even the indeterminacy of rights. In short, the doctrine is consistent with an understanding of rights as falling within the ‘circumstances of politics.’ In particular, constitutional rights can be understood not as guaranteeing spheres of presumptive immunity for particular kinds of activities presumed as essential to human dignity or autonomy, but rather as requiring public authorities to provide special kinds of justifications for specific kinds of acts (just as Forst, in particular, suggests).