'Canadian media is in crisis': Unifor blames Pierre Poilievre clip manipulation on CTV job cuts - Ontario labour board certifies Unifor to represent workers at Walmart warehouse - General Motors and Unifor reach tentative agreement at CAMI plant - Unifor says workers at Walmart warehouse in Mississauga vote to join union - Unifor says workers at Walmart warehouse in Mississauga, Ont., vote to join union - Walmart workers at Ontario facility vote to join Unifor - Unifor says workers at Walmart warehouse in Mississauga, Ont., vote to join union - Walmart workers at Mississauga facility set to vote on joining Unifor - General Motors, Unifor begin bargaining for CAMI plant workers in Ontario - Unifor applies to represent workers at Walmart warehouse in Mississauga