The leader of the party that supported Prime Minister Justin Trudeau’s Liberal Party vowed to bring down the government, saying Mr. Trudeau had failed Canada.
The president-elect’s opening salvo in trade and border talks with the United States’ neighbors is casting a harsh light on the North American alliance.
Foreign leaders have rushed to ingratiate themselves with Donald J. Trump in recent days, nervously recalling the clashes, insults and feuds of his first presidency.