Long-promised tariffs on Canada and Mexico are set to take effect Tuesday barring a late-hour reprieve by President Donald Trump, who stalled the moves previously. Trump has said the tariffs are coming in response to the “very high and unacceptable levels” of fentanyl flowing across the northern and southern borders.

Trump sowed confusion last week when he mentioned a possible April 2 deadline in connection with tariffs on Canada and Mexico, but later reaffirmed the Tuesday deadline and said h