News today was that Prime Minister Mark Carney withdrew many Canadian retaliatory tariffs on American good, although some remain. (One report indicated that the withdrawal was for goods covered by CUSMA/USMCA.) This news angered many Canadians, as it is an apparent reversal of the “elbows up” message of the election campaign.

Although I am not a fan of the move, the reality is that the most effective retaliation was by provincial governments (cutting off American liquor purchases in provincial di...