The Trump administration imposed punitive duties on softwood lumber imports from Canada, and some see it as an opening offensive ahead of NAFTA renegotiation. Perhaps, but the softwood lumber dispute between the U.S. and Canada is a long and storied one. Confirmation Bias Sonny Perdue is now the U.S. secretary of agriculture after the Senate approved his nomination by a vote of 87-11. That would seem to be solid backing when contrasted with some other Trump cabinet members. Only five out of 17 received more support, and just one has thus far received unanimous approval (100-0). However, most previous USDA leaders have been approved unanimously and none as late in the first year of a new administration as Perdue.Perhaps the most important...