Some accounts of #Trump’s approach to #trade, …identify William McKinley, 25th POTUS, as inspiration. Others suggest that #Hitler’s Germany, which pursued an economic policy of self-sufficiency, or #autarky, may be Trump’s real role model. Wherever he got his love of #tariffs & #protectionism, the intellectual antecedents of his approach go back to English mercantilist thinkers of the 16th & 17th centuries, who also viewed trade as a zero-sum enterprise in which one side wins & the other loses.