Trump vows to strike back at European leaders who warned of retaliation for his tariffs - The Washington Post:

Canada and Germany are among countries to speak out against the president's proposals for aluminum and steel. ....
https://www.washingtonpost.com/business/economy/trump-vows-to-strike-back-at-european-leaders-who-warned-of-retaliation-for-his-tariffs/2018/03/03/a7b96456-1f21-11e8-9de1-147dd2df3829_story.html