Hungary's Orban backs Polish court ruling challenging EU law

FILE PHOTO: Hungarian Prime Minister Viktor Orban speaks during the Budapest Demographic Summit in Budapest, Hungary, September 23, 2021. REUTERS/Bernadett Szabo

BUDAPEST (Reuters) - Hungary has called on European Union institutions "to respect member states' sovereignty" after it backed a Polish court ruling that some EU law is incompatible with the Polish constitution.

Prime Minister Viktor Orban signed a Hungarian government decree on Saturday, his press chief told state news agency MTI, welcoming the ruling by Poland's Constitutional Court which has plunged the EU into an existential crisis.