Amanah communications director Khalid Samad has not discounted the possibility of Dr Mahathir Mohamad betraying Pakatan Harapan if the opposition coalition seizes federal power.

The Shah Alam MP also admitted that the collaboration with the former prime minister was controversial.

"I don't deny the cooperation is controversial. Some feel that once we take power in the 14th general election, Tun (Mahathir) will betray Harapan and return to form the government with Umno/BN.

"I don't deny there is a possibility of a betrayal taking place. But this is merely a possibility. Nothing more than that," Khalid said in a blog posting...