United States President Donald Trump has threatened to block the opening of the new bridge connecting Detroit and Windsor, Ontario, escalating tensions with Canada over trade disputes. Trump criticized Canada's ownership of the bridge, its trade policies, and its negotiations with China, demanding compensation and immediate talks with Ottawa. The bridge, financed by Canada after the United States declined to pay, is set to open soon and is expected to significantly reduce congestion and boost cross-border trade. Michigan officials and lawmakers have condemned Trump's threats, warning of economic harm and emphasizing the importance of the project for jobs and supply chains. The bridge is seen as a critical infrastructure link, with billions in annual trade at stake and substantial savings projected for travelers and truckers.