The U.S. dollar staged a partial rebound on Tuesday after President Donald Trump suggested the U.S. could impose tariffs on Canada and Mexico by Feb. 1, challenging suggestions that his trade policy might be more gradual.

President Donald Trump said in an Oval Office signing ceremony Monday evening that his administration will impose 25% tariffs on Mexico and Canada on February 1, an extraordinary change in North American trade policy that could raise prices for American consumers.

The president said he planned to put tariffs on America’s neighbors on Feb. 1, as he signed an executive order mandating a sweeping review of U.S. trade policy.