WATCH: White House says Mexico, Canada, some others may be exempt from tariffs under national security ‘carve-outs’

The White House says Mexico, Canada, and other countries may be exempted from President Donald Trump’s steel and aluminum tariffs under national security “carve-outs.”

Press secretary Sarah Huckabee Sanders tells reporters that the exemptions would be on a “case by case” and a “country by country” basis.

The openness to country exemptions is a reversal from the policy articulated by the White House just days ago that there would be no exceptions to Trump’s plan to put in place 25 percent tariffs on imported steel and 10 percent on aluminum.

Sanders says Trump will finalize the tariffs later this week. The plan has roiled markets and drawn consternation from American allies, Republican free-trade advocates, and the business community.