Primacy of European law is founding pillar of EU, top EU diplomat says

"One of the pillars of the EU is the primacy of EU law," Borrell said at an event in Madrid, weighing on an escalating conflict between Brussels and Warsaw. Poland's highest court on Thursday challenged one of the legal principles of the European integration in a controversial ruling.

The primacy of EU law over national legislation is a founding pillar of the EU, its top diplomat Josep Borrel said on Friday after he was asked about Poland ruling that declared some parts of EU treaties incompatible with the Polish constitution. "One of the pillars of the EU is the primacy of EU law," Borrell said at an event in Madrid, weighing on an escalating conflict between Brussels and Warsaw.

Poland's highest court on Thursday challenged one of the legal principles of European integration in a controversial ruling. The European Commission said the ruling raised serious concerns about the primacy of EU law, setting it on a full collision course with Poland's nationalist rulers after years of legal and political wrangling.

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