In the long human story of borders and bread, trade disputes have always found their way to the kitchen table. Canada's retaliatory tariffs on American goods — a response to President Trump's trade actions — are now pressing upward on the price of milk and cheese across the United States, with dairy producers in Idaho and Washington bearing the earliest weight. The mechanics are old and familiar: barriers raised at one end of a supply chain become costs absorbed at the other, and it is ordinary households, not governments, that ultimately settle the bill.