The Teamsters union in Canada has filed four separate legal challenges against the federal government's intervention in a labor dispute involving major freight railroads, arguing that the government's directive for binding arbitration undermines their constitutional right to collective bargaining. Union president Paul Boucher emphasized that this action sets a 'dangerous precedent' and threatens the union's ability to negotiate for better wages and working conditions. The government's intervention, which came after a lockout of 9,300 railroad workers, aimed to mitigate economic disruption from halted train operations. While the union contests this directive, Canadian National Railway and Canadian Pacific Kansas City assert that the government's actions have restored stability to the supply chain. The Canada Industrial Relations Board has mandated the resumption of train operations while arbitration is arranged, yet the union remains determined to have their voice heard legally. The situation continues to evolve as the Teamsters await court rulings on their appeals.