“With a little help from the people”: Actio popularis and the politics of judicial review of constitutional amendments in Colombia 1955–90: Actio popularis and the politics of judicial review of constitutional amendments in Colombia 1955–90

This article examines the reasons behind the consolidation of the Supreme Court of Colombia’s authority during the second half of the twentieth century as the ultimate umpire of amendments’ constitutionality. After analyzing the case law of the Supreme Court between 1955 and 1990 and the political environment in which it rendered its decisions, the article claims that the Court managed to cement its power to review amendments thanks to the presence of a novel constitutional experiment, as well as to the existence of certain political conditions. With respect to the first factor, an actio popularis (by which any citizen had the right to petition the Court and challenge the constitutionality of legislation) granted the Supreme Court a constant flow of cases that allowed it to entertain and adjudicate on citizens’ petitions questioning the constitutionality of amendments. Regarding the latter factor, democracy and political pluralism gave the Court some room to quietly consolidate its jurisdiction to review amendments and, eventually, quash some of them. The article concludes with a cautionary note on the success of actio popularis and the doctrine of unconstitutional constitutional amendments as deployed by the Supreme Court.