Eating Crow Few free traders in Washington believe that President Trump’s tariffs first approach to trade policy is a good idea. In fact, they have mountains of economic studies highlighting the downside risks from the approach. Thus, it was surprising when powerful Senate Finance Committee Chairman Chuck Grassley (R-Iowa), a critic of Mr. Trump’s approach, cited the USMCA and China agreements in saying he and other skeptics “ate a bit of crow.”   A trade agreement with India may be the next positive outcome from this White House using GSP to leverage better trading terms for the U.S. Still, at this juncture it is hard to say that on net the American economy is better off under this approach.  Green...