Poland's PM welcomes Polish court ruling challenging primacy of EU law
WARSAW, Oct 8 (Reuters) - Poland's Prime Minister Mateusz Morawiecki welcomed a Polish court ruling that said some parts of European Union treaties are incompatible with the Polish constitution in a Facebook post on Friday.
The ruling, announced Thursday, challenges a pillar of European integration and sharply escalates a dispute between Brussels and Warsaw, with the European Commission saying it raised serious concerns.