Dr Mahathir Mohamad today delivered a potential hammer blow to Prime Minister Najib Abdul Razak by stating that an elected head of a state government cannot be removed by a sultan.<br /><br />Instead, the former prime minister said that the elected head of a state government can only be removed by a vote of no-confidence in the legislative assembly.<br /><br />More in Malaysiakini.com<br /><br />Camera: Amiruddin Abdullah<br />Editing: Indrani Kopal