Mohammad Mirmohammadi ( Persian : محمد میرمحمدی ‎; 1948 – 2 March 2020) was an Iranian conservative and principlist politician who served as the senior adviser to Iran's Supreme Leader Ayatollah Ali Khamenei , and a member of Expediency Discernment Council . He was the member of the 6th and 7th Iranian parliaments for Qom . Mohammad was a member of the central council of the Islamic Republic Party , presidential chief of staff during the presidencies of Ayatollah Ali Khamenei and Akbar Hashemi Rafsanjani , and secretary general of the Islamic Civilization Party .