William Reinsch, senior fellow at the Center for Strategic and International Studies, said Trump officials could opt for a more easily implemented flat 10% or 20% tariff rate, or a messier approach that would require separate tariff schedules matching U.S. tariffs to each other country's rates.

President Donald Trump ordered a 25% tariff on steel and aluminum imports, escalating his efforts to protect politically important US industries with levies hitting some of the country’s closest allies.

Trump knows the United States has more leverage over its neighbors than they do over his country. But exploiting that position of strength could cause a historic rupture.

Amid warnings of price increases, Canada moved quickly to retaliate, China said it had planned countermeasures and Mexico said it would soon unveil its response.

Mexico's government on Tuesday questioned the fairness of a 25% tariff ordered by U.S. President Donald Trump on its steel and aluminum imports, stressing that Mexico buys more steel from the U.S. than it exports to its northern neighbor.

President Donald Trump’s desire to get even on countries by matching tariffs they have on American goods could come at a steep cost.

A group of Democrats have called on President Trump to retract tariffs on Canada and Mexico before they are implemented. “As Members of the House Ways and Means Committee, we urge you to retract