Canadian Prime Minister Justin Trudeau’s Liberal party has suffered a major upset in a special election for a Toronto district it has held for three decades. That's raising doubts about Trudeau’s leadership ahead of next year’s general election. Canada’s largest city is a traditional Liberal stronghold. The Trudeau Liberals have been in power since 2015 but are trailing badly in the polls amid concerns over the cost of living. Trudeau has said he intends to lead the party into the next election. Elections Canada says
