Senator Chuck Grassley has indicated that ratification of the U.S.-Mexico-Canada Agreement through Congress “is dead” if section 232 duties on imports of steel and aluminum from Canada and Mexico are not removed. Grassley’s concern appears centered on the impact of retaliatory duties on agriculture. At the aggregate these have had little effect – agriculture exports to Canada and Mexico increased by 4.2% and 12.3% year over year in the three months to Feb. 28. Individual products including pork and sugar have suffered significantly yet. In the context of total ...