Canada's ambassador to the United States, Mark Wiseman, said Canada-U.S. trade talks broke down on the evening of the 22nd over multiple issues. According to ChainCatcher, Wiseman said the written text of a potential agreement differed from what Canada believed had been reached, and no single issue alone caused the talks to fail. The collapse of the negotiations triggered a new round of tariff measures and could escalate the trade dispute between Canada and the United States.