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U.S. Justice Department Halts Antitrust Collaboration with Canada over Trade Issues

The U.S. Department of Justice has paused its antitrust activities with Canada due to escalating trade tensions. This decision affects ongoing investigations and regulatory cooperation.

9/22/2026, 6:00:43 AM

The U.S. Department of Justice (DOJ) has reportedly been instructed to suspend all antitrust collaboration with the Canadian government. This directive comes amid heightened trade disputes between the two nations, marking a significant shift in previously cooperative relations. According to The Wall Street Journal, the decision to halt cooperation affects various initiatives where both countries previously engaged on antitrust matters. This includes investigations that address competition laws and regulatory practices shared between the DOJ and Canadian authorities. The move is likely to have implications for current and future negotiations surrounding trade policies and enforcement. U.S.-Canada relations have seen fluctuations in recent months over various trade issues, and this suspension represents another layer of complexity in the ongoing dialogue between the two governments. The DOJ's antitrust division has historically worked closely with its Canadian counterpart to address cross-border competition challenges. The current pause signifies a crucial moment, as collaboration in these areas often helps streamline enforcement and enhance economic cooperation. This announcement highlights the evolving dynamics of U.S.-Canada trade relations and the impact of political decisions on law enforcement activities. The cessation of joint antitrust efforts may slow down progress on addressing competition concerns that affect businesses and consumers in both countries. As trade tensions continue, observers will be watching closely to see how this development influences broader relations and whether the DOJ will resume cooperation once the trade landscape stabilizes.

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