Case C-650/18: Judgment of the Court (Grand Chamber) of 3 June 2021 — Hungary v European Parliament (Action for annulment — Article 7(1) TEU — European Parliament resolution on a proposal calling on the Council of the European Union to determine the existence of a clear risk of a serious breach of the values on which the European Union is founded — Articles 263 and 269 TFEU — Jurisdiction of the Court — Admissibility of the appeal — Challengeable act — Article 354 TFEU — Rules for counting votes in the Parliament — Rules of Procedure of the Parliament — Rule 178(3) — Concept of ‘votes cast’ — Abstentions — Principles of legal certainty, equal treatment, democracy and sincere cooperation)