There's no provision to expel a member condition, but TEU Article 7 presents to the suspension of selected legal rights. Launched in the Treaty of Amsterdam, Article seven outlines that if a member persistently breaches the EU's founding ideas (liberty, democracy, human rights and so on, outlined in TEU Report https://alternatif-member4d74734.blogocial.com/considerations-to-know-about-link-member4d-65575317