Case C-378/19: Judgment of the Court (Fifth Chamber) of 11 June 2020 (request for a preliminary ruling from the Ústavný súd Slovenskej republiky — Slovak Republic) — proceedings brought by Prezident Slovenskej republiky (Reference for a preliminary ruling — Internal market in electricity — Directive 2009/72/EC — Article 35(4) and (5) — Independence of regulatory authorities — National legislation transferring the power to appoint the president of the national regulatory authority from the Head of State to the government — national ministries participating in price-setting procedures)