Despite Erin O’Toole’s attempts to portray himself as an ally of workers, the Conservative leader appears to remain public enemy No. 1 so far as Canada’s labour unions are concerned. Some of the largest unions are urging their members to vote for anybody but the Conservatives. Others are actively involved in urging their members to vote strategically in close-fought ridings — either for the Liberals or NDP depending on the riding — prevent the Conservatives from winning. Still others, such as United Steelworkers Canada, are endorsing the NDP outright. But Chris Aylward, national president of the Public Service Alliance of Canada, said he’s unaware of any union that has endorsed the Conservatives. The party itself did not respond when asked whether it has received any union endorsements.