The European Parliament adopted the resolution of 1 March 2018 on the situation of fundamental rights in the EU in 2016. In its resolution, the EP asserts that neither national sovereignty nor subsidiarity can justify or legitimise the systematic refusal on the part of a Member State to comply with the fundamental values of the European Union which inspired the introductory articles of the European Treaties, which every Member State has willingly endorsed and committed themselves to respecting. In addition, it notes that compliance with the Copenhagen Criteria by states at the time of their accession to the EU must be subject to constant monitoring and to a constant dialogue within and between Parliament, the Commission and the Council. Read the full resolution here.
Source: European Parliament