A widening rift within the largest member in Malaysia’s ruling Pakatan Harapan coalition, which became exposed after rival leaders lashed out at each other during a key weekend meeting, has stoked concerns it would unsettle the administration and hurt its chances at the next general election.The People’s Justice Party (PKR) is led by Anwar Ibrahim, 72, to whom Prime Minister Mahathir had vowed to hand over power after laying the groundwork for a new administration that began last May when the…