It has recently been argued in this Review that public opinion research tends to favor the expert authority of elite institutions such as the courts, over the democratic authority of the people as a source of law or constitutional interpretation. In this article we introduce an alternative survey construction that allows the public to be considered as a possible source of constitutional knowledge Using this survey, we find that most respondents can clearly articulate their position on the constitutionality of abortion, and offer and recognize reasons to ground both support and opposition to their position. We argue that these findings suggest that further work with alternative survey constructions may more firmly establish public knowledge in constitutional debates, thereby forming the basis to reclaim a democratic constitutional politics.