While many scholars expect people's ideological orientations to drive their beliefs regarding the legitimacy of international organizations (IOs), research has found surprisingly limited support for this common assumption. In this article we resolve this puzzle by introducing the perceived ideological profile of IOs as a critical factor shaping the relationship between ideological orientation and such beliefs. Theoretically, we argue that citizens accord IOs greater legitimacy when they perceive these organizations as ideologically more congruent with their own orientations. Empirically, we evaluate this expectation by combining observational and experimental analyses of new survey evidence from four countries: Brazil, Germany, Indonesia, and the United States. We find that citizens indeed perceive IOs as having particular ideological profiles and that those perceptions systematically moderate the relationship between people's ideological orientations and their sense of IOs’ legitimacy. These findings suggest that political ideology is a more powerful driver of legitimacy beliefs in global governance than previously understood.

This article analyses party positions on European Union (EU) solidarity in Germany in the run-up to the 2021 German federal elections. While previous studies have investigated whether and under which conditions individuals support or reject different types of EU solidarity, little is known about how political parties position themselves on the issue. The study draws on an original expert survey on German party positions, including various items on EU solidarity. First, we demonstrate that the GAL–TAN dimension strongly shapes party positionings on EU solidarity. Second, the support by political parties varies along the long- or short-term institutionalization of types of EU solidarity. Third, the findings have political implications for the current German government coalition, revealing potential problems for a joint political agenda on EU affairs.