Deliberative minipublics are becoming increasingly popular, with both scholars and practitioners highlighting their potential to bolster public approval of political decision-making. Yet, it remains unclear whether minipublics are able to do so in contexts where the public itself is deeply divided – a concern which becomes only more relevant as levels of polarization are said to rise across the globe. In this study, we argue that polarized citizens may perceive minipublics and their outcomes as less legitimate than more moderate citizens. We use original survey data from Northern Ireland (n = 932), a highly polarized society where a minipublic was organized on the contentious issue of the region’s constitutional future. We find that higher levels of ideological polarization and, to an extent, affective polarization are associated with lower levels of perceived minipublic legitimacy among the wider public, although effects are small. This offers novel insights into the role of minipublics in polarized settings.
