By Panarat Thepgumpanat and Panu Wongcha-um BANGKOK (Reuters) - Thailand's prime ministerial hopeful Pita Limjaroenrat was braced for a critical test of his political clout on Thursday, as parliament convenes for a high-stakes vote on the premiership that could test the unity of his eight-party alliance. The 42-year-old leader of surprise election winners Move Forward is expected to be the only candidate in Thursday's vote, but he faces a big challenge in securing the required backing of more than half of 750-member bicameral parliament. The liberal Move Forward and its alliance partner, Pheu ...
