This research examines how major crises—the 2015 refugee crisis, the COVID-19 pandemic, and the war in Ukraine—have shaped public opinion, policy priorities, and support for the European Union. Analyzing harmonized Eurobarometer data spanning 2010 to 2023 (N=879,026), we investigate shifts in citizens' priorities pertaining to the EU's economic, political, and social roles across member states, subnational regions, and demographic groups. We employ a longitudinal, comparative approach to assess whether these crises amplified or mitigated existing cleavages in public preferences and the extent to which these shifts impacted attitudes toward European integration. The longitudinal design of the Eurobarometer enables us to trace changes in perceptions over time, offering valuable insights into the evolving relationship between citizens, their priorities, and the EU's ongoing efforts to maintain legitimacy amid periods of crisis.