The paper highlights main disintegrational trends in the politics of the modern European Union. The analysis of scientific researches on this matter is provided. In author’s opinion, the major challenges that the European Union faces in the XXI century have become the institutional and financial crises, as well as the crisis of multiculturalism. The paper reveals the problems associated with multicultural policies in the European Union, as well as the development of modern Euroscepticism.

the European Union, disintegration, multiculturalism, Euroscepticism, institutional crisis

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