Prime Minister Muhyiddin Yassin cannot afford to have Umno MPs convicted in their existing graft charges as it could mean losing his razor-thin majority in the Dewan Rakyat, said former prime minister Dr Mahathir Mohamad.

For this reason, Mahathir cast doubt on Muhyiddin's promise not to interfere in the ongoing graft cases against Umno leaders.

He said among the Umno MPs facing graft charges include Najib Abdul Razak (Pekan), Ahmad Zahid Hamidi (Bagan Datuk), Tengku Adnan Tengku Mansor (Putrajaya), Abdul Azeez Abdul Rahim (Baling), Ahmad Maslan (Pontian) and Bung Moktar Radin (Kinabatangan).

"There are now 114 MPs who support Muhyiddin, only three more than...