Understanding of the relationship between constitutionalism and democracy among legal and political philosophers reflects an idealised account of the US constitution and the nature of judicial review. This view is normatively and empirically flawed. The US constitution is built on pre-democratic assumptions and its counter-majoritarian checks and balances are largely regressive, benefitting privileged minorities over the underprivileged. By contrast, ‘actually existing democracy’, involving competing parties and majority rule, is constitutional in its process and effects, treating all with equal concern and respect, upholding rights and maintaining the rule of law. Judicial review undermines these beneficial qualities.