Shifting NAFTA Implications Trade consultant Dan Pearson notes that the USITC’s analysis (see Gambling Everything; 03 December) of the USMCA could indicate a negative economic impact relative to NAFTA. This outcome is possible due to USMCA’S protectionist provisions such as the rules of origin for automobiles. In that case, President Trump’s threat to cancel NAFTA would be necessary since it would make no agreement worse than the only other option available - USMCA.  The Democrats have historically been more negative toward NAFTA, and so it is notable that incoming House Majority Leader Steny Hoyer (D-Maryland) says that terminating that agreement “would be a big mistake.” If the USMCA is negative relati...