 Complete the following phrase:  On 3 March 1924, the first President of the Turkish Republic, Mustafa Kemal Atatürk, as part of his reforms, constitutionally abolished the institution of the caliphate. Atatürk offered the caliphate to Ahmed Sharif as-Senussi, on the condition that he reside outside Turkey; Senussi declined the offer and confirmed his support for Abdulmejid. The title was then claimed by Hussein bin Ali, Sharif of Mecca and Hejaz, leader of the 