Unite backs left-wing lawmaker to lead Labour Party

By William James LONDON (Reuters) - The British Labour Party's biggest financial backer, trade union Unite, on Sunday backed left-wing lawmaker Jeremy Corbyn to be the party's new leader. Labour is searching for a new leader after Ed Miliband resigned in May on the back of the party's heaviest election defeat in decades, when voters instead backed Prime Minister David Cameron's centre-right Conservatives. Unite, Britain's biggest trade union, donated around 20 million po