Trump termed the 50% discount as a "kind reciprocal" policy. Some countries have trade surpluses with the US and — using the formula above — would come out with a negative rate.

Canadian parents were in a bind not too long ago over infant formula shortages caused by a U.S. plant closure in February 2022. Those shortages lasted for months in 2022 and 2023.

Investing.com -- Canada’s S&P/TSX Composite Index is on track to see its largest reshuffle in nearly three years, driven by strong price divergence across sectors and geopolitical uncertainty, ...