The present paper has tried to investigate and give answers, statements and analyze the doubts related to Art. 2 TEU. However, the way is difficult given that Art. 2 TEU is connected with several articles of the CFREU but also with Art. 7 TEU. The theories are varied but what helps us to understand and better analyze and understand the values of the EU is the jurisprudence of the CJEU. Substantive profiles that lead us to analyze a variety of arguments and themes such as the European arrest warrant, the right to expression, the principle of democracy, etc. But also to answer certain questions, i.e. What are the jurisdictional remedies of Art. 2 TEU? What types of appeals can it makes? What articles can be included with it? Can it alone be a subject of litigation and be presented before the CJEU? These are some of the topics discussed in our survey.