President Donald Trump's threats to impose punishing tariffs on Canada and Mexico may be part of a strategy to gain leverage ahead of new negotiations on a regional trade agreement, experts said.

On Monday and Tuesday, President Trump announced that he would be keeping one of his key campaign promises and imposing by Feb. 1 a 25% tariff on goods from Canada and Mexico as punishment for allowing drugs and migrants to cross into the United States as well as an additional 10% tariff on goods from China to penalize the country for sending

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