Recent studies report high levels of political trust among immigrants in Western Europe. Notably, such confidence tendto be particularly pronounced among immigrants from countries without democratic institutions and poor records in terms of corruption level. Yet over time, members of these population categories tend to express decreasing levels of political trust. Following previous research, such a pattern may be explained by high initial—although with time retreating—expectations concerning the quality of institutions in Western Europe. Analyzing Swedish survey data—particularly appropriate in the light of competing hypotheses concerning acculturation and barriers to integration, including discrimination—this paper presents additional support for the importance of expectations when it comes to political trust. Our analyses suggest that the gradual development of more modest expectations regarding institutional performance in the new country is a trustworthy explanation of the falling levels of immigrants‘ political trust.