By Aaron Miller-
A legal challenge to U.S. President Donald Trump’s tariffs on Canadian goods has been filed in the United States Court of International Trade, opening a new front in the dispute over Washington’s trade policy and the extent of presidential authority to impose sweeping import restrictions.
The lawsuit, filed by the non-profit Liberty Justice Center on behalf of U.S. food importer Gellert Global Group, argues that Trump exceeded his legal powers by invoking Section 338 of the Tariff Act of 1930 to impose tariffs and restrict imports from Canada.
The news of the suit comes barely 24 hours after it was revealed that the U.S president’s rating is at an all time low. The case challenges the administration’s use of a statute dating back to the Great Depression, raising questions about whether the provision can lawfully support the measures introduced against Canadian products.
The legal action follows an escalation in trade tensions between Washington and Ottawa after negotiations broke down in August. Trump subsequently used Section 338 to impose tariffs of up to 50 per cent on an array of Canadian goods. The following month, the administration also invoked the statute to prohibit imports of additional Canadian products, including motorcycles and certain alcohol and dairy goods.
At the heart of the lawsuit is the argument that a president cannot use a long-dormant trade law as the basis for such far-reaching restrictions without exceeding the authority granted by Congress. The Liberty Justice Center maintains that the administration’s interpretation of the statute gives the president powers that should not be exercised unilaterally.
“No president should have the power to pull a dormant statute off the shelf and use it to impose sweeping tariffs or import bans,” the organisation’s chief executive, Sara Albrecht, said in a news release.
The case places renewed scrutiny on the legal foundations of Trump’s tariff strategy, which has become a major source of uncertainty for businesses operating across the U.S.-Canada border. Tariffs can increase the cost of imported goods, disrupt established supply chains and place pressure on companies that depend on cross-border trade. Import restrictions can have an even more direct impact by preventing affected products from entering the market altogether.
For Gellert Global Group, the challenge raises the question of whether the administration had the authority to impose the measures under the 1930 law. The court will be asked to consider the legal arguments surrounding the statute and the limits of executive power in trade policy. The filing itself does not establish that the tariffs are unlawful, and the administration’s position will be central to the dispute as the case proceeds.
The use of Section 338 is particularly significant because the provision dates from an era when the United States was grappling with the economic turmoil of the Great Depression. Its revival in the current trade dispute highlights how older legislation can become central to modern battles over tariffs, executive authority and international commerce.
The lawsuit also comes against the backdrop of strained U.S.-Canada trade relations, with the latest measures threatening to complicate commercial ties between two neighbouring economies deeply connected through manufacturing, agriculture, energy and consumer markets. Restrictions on Canadian goods can affect not only exporters north of the border but also American importers, distributors and businesses that rely on Canadian products.
The case could therefore have implications beyond the companies and products directly affected by the challenged measures. A judicial ruling on the scope of Section 338 could help clarify how far a president can go in using the statute to impose tariffs or prohibit imports, although the precise implications will depend on the court’s findings and the scope of any eventual decision.
The legal challenge adds another layer of uncertainty to an already contentious trade dispute. As the case moves forward, its central question will be whether Trump’s administration acted within the authority granted by Congress when it turned to a Depression-era statute to impose sweeping restrictions on Canadian goods.



