The European Commission's chief executive warned #Poland on Tuesday that its challenge to the supremacy of #EuropeanUnion law called into question the very foundations of the 27-nation bloc and could not go unpunished. Poland's Constitutional Tribunal ruled last week that parts of EU #law are incompatible with the Polish #constitution, undermining the legal pillar on which the union stands and raising fears that Poland could eventually leave the bloc. FRANCE 24's International Affairs Commentator Douglas Herbert gives his perspective.

🔔 Subscribe to France 24 now: https://f24.my/YTen
🔴 LIVE - Watch FRANCE 24 English 24/7 here: https://f24.my/YTliveEN

🌍 Read the latest International News and Top Stories: https://www.france24.com/en/

Like us on Facebook: https://f24.my/FBen
Follow us on Twitter: https://f24.my/TWen
Discover the news in pictures on Instagram: https://f24.my/IGen