Support for Japan’s ruling Liberal Democratic Party (LDP) is ebbing away in the lead-up to a crucial poll on Sunday for the House of Councillors, with Prime Minister Shigeru Ishiba’s political fate on the precipice as his party is expected to be eviscerated by the electorate.A survey by the conservative Yomiuri newspaper published on Wednesday concluded that opposition parties were rapidly making up ground on the LDP and its coalition partner Komeito, with seats that were previously considered...