This chapter evaluates whether any accounts of general constitutionalism can reconcile judicial review with popular autonomy. It evaluates three prevalent approaches: the Constitution as a fixed contract among the people (originalism) that includes judicial review; the Constitution as a fluid, dynamic instrument (living constitutionalism); and instrumental institutionalist accounts. Despite their insights and merits, none of these accounts can explain how the power to shape democratic process can be legitimately allocated to a nonaccountable, apolitical actor while fully recognizing the normative weight of democratic self-determination.