Earlier quoted context omitted.
Tarrifs are the worst decision a politician can make. The main reason we have open-ish border for people and goods is to reduce the risk of war. You are not going to wage war with a country that do business with. This undermines this idea.
Then why did Canadian politicians tax milk products at > 200%? https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/2024... (starting long before the current trade war)
that tariff would only apply if we were able to reach and exceed the quota on U.S. dairy exports agreed to under the U.S.-Mexico-Canada Agreement (USMCA).
[...] the U.S. has never gotten close to exceeding our USMCA quotas