[1] Mustapha who is a native of Tripoli, completed a PhD doctorate degree in law and political science from the University of Montpellier with summa cum laude 4.0 GPA.

[3] In 2004, he became the President of the Centre d'études stratégiques pour le moyen-orient (CESMO), and since then had conducted numerous studies with the UN, Generic Center for Civilian Control of Armed Forces.

[9] On 30 August 2020, he was backed by the Future Movement of Lebanon and a group of former Lebanese prime ministers to take up the post of PM.

[10][11] He was nominated for the position while serving as the Lebanese ambassador to Germany in order to replace Hassan Diab who resigned on 10 August 2020 due to the outcry and uproar following the 2020 Beirut explosion which killed nearly 200 people.

[6][15] On 31 August 2020, he was formally appointed as the new designated PM of Lebanon a day prior to the deadline (1 September 2020) set by the French President who demanded for a political change in the country free of corruption.