The Globe and Mail reports in its Wednesday, Sept. 23, edition that on Tuesday President Donald Trump floated the idea of buying Belarus potash, before saying the United States will continue to buy it from Canada. The Globe's Steven Chase writes that in response, Prime Minister Mark Carney noted that Canada provides the vast majority of the potash used by U.S. farmers and represents a cost-effective supplier for the U.S. He predicted that this would continue to be true. The PM then suggested Canada and the U.S. work together across all fertilizer ingredients to become a self-sufficient bloc for these products. American reliance on Canada for potash has caused Mr. Trump to grant the substance carveouts from his tariffs. On Monday, Belarusian President Alexander Lukashenko said Belarus has no potash to sell to the U.S. as most of its exports are already committed to other countries. Mr. Trump said Belarus could be a cheaper source of the fertilizer ingredient. "Belarus has a lot of potash, and our farmers need good prices, and we want to get a lower price," Mr. Trump told reporters when asked about the proposed deal. "We'll continue to go with Canada, but Belarus would like to sell it for a much lower price."