President Donald Trump imposed sweeping 25% tariffs on all steel and aluminum imported into the United States Wednesday, a policy aimed at leveling the playing field for US manufacturing but a move that threatens to drive up prices on a broad range of consumer and industrial goods for Americans.

President Trump on Thursday threatened to impose heavier tariffs on Canada and the European Union if they work together to “do economic harm” to the United States, hours after he said he would impose 25 percent tariffs on imported cars and car parts.