President Trump holds a news conference with Canadian Prime Minister Justin Trudeau in the White House on Feb. 13. (Jabin Botsford/The Washington Post)

Regarding the April 26 Economy & Business article “Fear of trade war with Canada grows”:

Americans don’t seem to understand President Trump’s trade offensive against Canada.  Let me tell you: What Trump and Commerce Secretary Wilbur Ross are saying is true. In the meat business, American consumers wanted a country-of-origin labeling provision so they could tell where the meat was coming from. Canada objected and appealed to the World Trade Organization, forcing Congress to back down on the labeling.

In the lumber business, Canadian government subsidies lowered the price of Canadian lumber to the point that sawmills in the Northwest were forced to shut down. Note how the proposed tariffs on Canadian lumber were welcomed publicly by Democratic Sens. Amy Klobuchar and Al Franken of Minnesota.  

The dairy industry’s nostrils flare when Canada is mentioned. Ultra-filtered milk from Ontario seems to be the issue. Witness the praise for the administration’s harder line on dairy coming from Wisconsin Gov. Scott Walker (R) and House Speaker Paul D. Ryan (R-Wis.). I was in the electronics business for decades, and I saw Canada’s thinly veiled subsidies of the Smart Board destroy several American manufacturers, including at least one in my native Pennsylvania.

C. Arnold McClure, Shirleysburg, Pa.

The writer owns McClure Mills Farms.