They sure want it seem that simple, don't they:
https://globalnews.ca/news/11080769/donald-trump-tariffs-dairy-products-explained/
"Canada does charge high tariffs on dairy exporters that exceed certain quantities set under North American free trade rules — an agreement re-negotiated by Trump during his first term — but not as steep as Trump claims.
The federal government tells Global News that to date,
no U.S. dairy products imported by Canada have been subjected to those higher tariffs.
“We administer the dairy supply management system respecting Canada’s international obligations under trade agreements, whatever the terms of those agreements may be,” Philippe Charlebois, a spokesperson for the Canadian Dairy Commission, said in a statement.
Mary Ng, who served as international trade minister in Justin Trudeau’s government, put it more bluntly last week, telling reporters that Trump’s claims about dairy “are just not true.”