This article challenges the assumption underlying most education reforms that constructivism is politically neutral and intrinsically democratic. It makes this argument by examining the curriculum reform in Spain during the 1980s and 1990s in light of the neoliberal politics that the country was experiencing at that time. This study employs the poststructuralist analytical lens of governmentality developed by Foucauldian scholars. Accordingly, it claims that, the psychological version of constructivism adopted by the official curriculum reform failed to deliver promises for democracy because it was crafted within the same neoliberal political rationality that redefined the terms of government in the late 1980s, a redefinition that decontextualized the learner from his/her social context and adopted the logic of the market.