The power of national parliaments to make and interpret European Union rules. Functional analysis

The scientific aim of the article is to identify the principles relating to the power of national parliaments in the European Union system. The research problem is the analysis of the process of establishing and interpreting rules by national parliaments, examined using functional analysis. The research argument here is based on the theoretical perspective of neorealism and refers to the rules of competence influencing the further functioning of the European Union. In terms of research results, the article answers questions about the consequences of strengthening the competences of national parliaments in terms of setting and interpreting the principles of the European Union. The originality and relevance of the problem contained in the article is based on the empirical belief that the expanding power of national parliaments in the EU directly affects the quality and legitimacy of the decision-making process by the EU institutions.