Gerakan Youth chief Tan Keng Liang wants to know who Pakatan Harapan's choice is with regard to the coalition's designated prime minister in the next general election.

This, following PKR de facto leader Anwar Ibrahim decision to not offer himself as Harapan's candidate for prime minister.

"Is their choice now our former prime minister Dr Mahathir Mohamad?

"There is no reason for any political coalition to hide this information from the voters," Tan said in a statement today.