Stevenson opposed what he viewed as the Communist Party of Canada's tendency towards revisionism. After concluding that the CPC was no longer a Marxist party, he resigned from it, after more than 60 years of membership. He was a founding editor of the anti-revisionist magazine Northstar Compass in 1991 until 1995.http://www.yorku.ca/julabour/volume3/hernden_justlabour.PDF In his final years, he was an executive member of the International Council for Friendship and Solidarity with Soviet People.
