Voters cast their ballots in four ridings spread across Ontario, Quebec and Manitoba, with each race posing different challenges to the federal parties.
Early results suggest Conservatives retain Oxford federal byelection norfolkandtillsonburgnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from norfolkandtillsonburgnews.com Daily Mail and Mail on Sunday newspapers.