Page "United Malays National Organisation" Paragraph 23

UMNO backbencher Mahathir bin Mohamad, who had lost his Parliamentary seat in the election, wrote a letter to the Tunku, commenting his leadership.

Mahathir organised a campaign with University of Malaya lecturer Raja Muktaruddin Daim, circulating his letter among the student body of local universities.

Mass demonstrations broke out calling for " Malay sovereignty " and the Tunku's oustre.

After rioting broke out in June, Home Affairs Minister Ismail Abdul Rahman and Tun Razak agreed to expel Mahathir and former Executive Secretary of UMNO Musa Hitam from the party for breaching party discipline.