Prime Minister Mark Carney speaks in Ottawa, Ontario, Canada, May 5, 2026. The morning after he pulled negotiators from trade talks in Washington, Prime Minister Mark Carney explained to Canadians why he walked away on Aug. 22, calling the Trump administration proposal a bad deal. “We’ve recognized from the start that America has changed,” Carney said. “We recognize that sometimes, its signature is written in pencil.” (Ian Austen/The New York Times) By IAN AUSTEN The morning after he pulled…