Trump stated that Canada had "poisoned" U.S. air during a conversation with Canadian Prime Minister Mark Carney [The Hill]. Smoke from wildfires in Canada swept across American states [The Hill]. Trump told Carney, "you got to stop these fires from coming in and, you know, poisoning our air" [The Hill]. Ontario Premier called Trump’s wildfire smoke remarks "unacceptable" [CNN]. The statements occurred amid documented smoke transport from Canadian fires into U.S. regions. No evidence in the cited reports links the comments to new tariff proposals. Existing U.S.-Canada coordination on wildfire response predates the exchange. [Source Name] citations are limited to The Hill and CNN. Claims of deliberate deflection, forest management failure, or tariff linkage remain interpretive and are not supported by the primary reports.