New Trump tariffs face lawsuit hours after taking effect

President Donald Trump's administration is facing a new legal challenge over its latest wave of tariffs, filed just hours after the duties took effect. The lawsuit contests measures that include a 25% tariff on Brazilian imports and a threatened 50% levy on goods from Canada, arguing the administration exceeded the authority granted under the emergency trade law it invoked.

Legal experts cited in the case say the outcome is far from certain, noting that courts have not settled how far a president can stretch emergency powers to justify sweeping trade measures. A ruling against the tariffs could reshape how future presidents impose duties without congressional approval.

Importers are already absorbing higher costs on goods arriving from Brazil, while Canadian businesses brace for the possibility of even steeper duties. Brazil and Canada have both signaled they could respond with retaliatory measures of their own if the tariffs are not overturned in court.