U.S.-Canada Road Forward Donald Trump initially thought that U.S. agriculture was a problem for him since the sector was so paranoid about trade retaliation that it cried out loudly for him to “do no harm.” Now he has come to realize that it presents some of the best examples of protectionism faced by an American industry in markets abroad. At this past weekend’s G7 meeting in Canada, he zeroed in on the 270 percent duty that Canada charges on U.S. dairy exceeding that country’s relatively small import quota and mistakenly interpreted it as emblematic of the larger bilateral trade relationship. Then he and aide Peter Navarro made it personal with Prime Minister Justin Trudeau. This has rightfully left a very bad ta...