U.S.-Canada trade negotiations collapsed late Friday, raising concerns of a trade war between neighbors with a nearly $900 billion annual trading relationship. Both sides blamed each other for the breakdown, which brings renewed questions about the U.S.-Mexico-Canada Agreement's future. Canadian Trade Representative [PERSON_NAME] stated that [ADDRESS] walked away from the table after midnight, implementing 50% tariffs on $20 billion in Canadian goods—about 5% of exports to the U.S. The failure underscores tensions in North American trade policy and highlights challenges in maintaining cross-border economic ties.