Until the Trump era, the U.S. served as the world’s leader in promoting free trade. Now it is being treated like a pariah for suggesting the playing field is unlevel and is also being lectured on the principles it previously proffered.Until the Trump era, the U.S. served as the world’s leader in promoting free trade. Now it is being treated like a pariah for suggesting the playing field is unlevel and is also being lectured on the principles it previously proffered.A primary complaint from Trumpians about competitors is currency manipulation. Trump specifically called China and Japan currency manipulators. Tokyo rebuffed that the market determines foreign exchange rates and quantitative easing is controlled by its impartial central bank. It...