Poland is challenging one of the European Union's core principles. Regulations decided in Brussels are applied equally across its 27-member states, and override national legislation. But Poland's top court has ruled that parts of EU law aren't compatible with the nation's constitution. Other countries, including Hungary, have been at odds with the EU about the rule of law. So could Poland follow the UK and leave the bloc? Presenter: Adrian Finighan Guests: Michal Wawrykiewicz - Co-founder, #FreeCourts Initiative. Ulrich Brueckner - Professor of Political Science, Stanford University in Berlin. Pieter Cleppe - Editor, BrusselsReport.EU. - Subscribe to our channel: aje.io/AJSubscribe - Follow us on Twitter: twitter.com/AJEnglish - Find us on Facebook: www.facebook.com/aljazeera - Check our website: www.aljazeera.com/ #PolandEU #NoPolexit #InsideStory