Canada's federal opposition is increasing pressure on Prime Minister Mark Carney after the United States threatened new tariffs on a broad range of Canadian products.

Conservative shadow minister for Canada-U.S. relations Shuv Majumdar has asked Ottawa to hold an emergency meeting of the House of Commons Standing Committee on International Trade. The Conservatives want the government to present its written negotiating strategy and explain how it plans to respond to Washington.

The political challenge follows a U.S. announcement that 50% tariffs could be imposed on an array of Canadian products within 30 days. U.S. officials have cited issues including provincial restrictions on American alcohol, Canada's supply-managed dairy system and quotas affecting American vehicles.

The Conservatives argue that Canadians need greater transparency about Ottawa's negotiations and the potential economic consequences. Majumdar has criticized Carney's handling of the relationship with U.S. President Donald Trump, increasing the pressure on the Liberal government to demonstrate a clear strategy.

The issue comes as Canada continues efforts to diversify trade and strengthen domestic economic resilience while maintaining its critical commercial relationship with the United States.

For the Carney government, the coming weeks could prove politically important as Ottawa attempts to balance negotiations with Washington, protect Canadian industries and reassure businesses and workers facing renewed tariff uncertainty.