John Authers ( Smart Money, June 13) notes that investors ignored President Donald Trump's abusive treatment of Canada's prime minister, Justin Trudeau. At one of America's lowest points, during the Iran hostage crisis, the Canadian ambassador risked his own life and that of his wife to save six Americans. Canadians have fought and died alongside Americans time and again.
Bullying his friends may be acceptable to Mr. Trump as long as the stock market is up. Many Americans, however, are appalled and Congress would never approve a trade war against its northern neighbour.