Key facts
- Hungarian President Tamás Sulyok approved a constitutional amendment.
- The amendment imposes an eight-year term limit for prime ministers.
- This bars former Prime Minister Viktor Orbán from returning to office after his 20-year tenure.
- Hungary's top court has shelved President Sulyok's petition to prevent his ouster.
- Sulyok vows to resist efforts by Prime Minister Péter Magyar to remove him.
