Poland's Kaczynski says primacy of EU law undermines sovereignty

FILE PHOTO: Jaroslaw Kaczynski, leader of the ruling Law and Justice (PiS) party, attends a vote during parliamentary elections at a polling station in Warsaw, Poland, October 13, 2019. REUTERS/Kacper Pempel/File Photo

WARSAW (Reuters) - The European Union's insistence on the primacy of EU law over national legislation undermines Poland's sovereignty, ruling party leader Jaroslaw Kaczynski said in a letter quoted by state news agency PAP.

The European Commission, the guardian of EU treaties, asked Warsaw in June to withdraw a motion filed with Poland's constitutional court seeking a ruling on whether the country's constitution or EU treaties were more important.