In a world where attitudes towards immigration and the European Union are at the forefront of political and economic agendas across the continent, this Special Issue is highly relevant and well timed. This Forum article reviews the Special Issue and summarizes lessons learned and identifies open, remaining and new, questions. As a future research agenda, it is advised to pay attention to (a) differentiation in EU attitudes, (b) the role of national political elites, (c) the changing communications environment, and (d) the role of religion and religious attitudes.
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