Problem setting. On October 7, 2021, the Constitutional Tribunal of the Republic of Poland ruled in favor of Polish law over European Union law, which in the long run may violate the principles according to which the Union operates and the rights enjoyed by citizens of the state. Such a precedent can further serve as a basis for identical decisions of the bodies of constitutional jurisdiction of those states that have problems in fulfilling their obligations in the European community.
Analysis of recent researches and publications. The problems of the functioning of the bodies of the European Union, the implementation of their decisions and the general status in EU law are widely studied in national science. In particular, many scholars have studied the legal nature of the EU, including: TM Anakina, VI Muravyov, NM Ushakov, A. Ya. Kapustina, NA Korolyova, Yu. Yumashev, BN Topornin, OYa Tragniuk, SS Seliverstov, IV Yakovyuk and others.
Target of research is to establish the foundations of EU law in the functioning of Union bodies, especially the Court, as well as to determine the hierarchy of national law and EU law.
Article’s main body. Over the years, the Court has, within its jurisdiction, issued a large number of judgments which have become the source of the Union’s Constituent Treaties and of EU law in general. Over the last two decades, the powers of the Court of Justice have changed significantly. In particular, this is due to the adoption of the Lisbon Treaty, which amended the EU’s founding treaties on the powers of the Court, then the reform of the European Court took place in 2015-2016, which concerned a change in the organizational structure of the Court. Despite the generally well-established case law of the Court of Justice of the European Union on the unification of the observance by the Member States of the basic principles of the European Union, the Constitutional Tribunal of the Republic of Poland adopted a decision on 7 October.
Conclusions and prospects for the development. Following the decision of the Constitutional Court, the Polish authorities found themselves in a situation that significantly complicated its internal and external situation. The way out of which requires answers to fundamental questions about the legal nature of the EU. Undoubtedly, this is an issue not only between Poland and the EU, but also between other member states.