Intergovernmentalism represents a way for limiting the conferral of powers upon supranational institutions, halting the emergence of common policies. In the current institutional system of the EU, the European Council and the Council play the role of the institutions which have the last word about decisions and policies of the EU, institutionalizing a de facto intergovernmental control over the EU as a whole, with the possibility to give more power to a small group of states. This extreme consequence can create the condition of supremacy of someone over someone else violating the principle of a "Union of Equals".