Trump orders Lake Ontario renamed 'Lake America' amid Canada dispute

On August 28, 2026, U.S. President Donald Trump signed an order to rename Lake Ontario as 'Lake America' for federal use. The move is part of an ongoing tariff dispute with Canada, and Canadian Prime Minister Mark Carney has responded to the decision. Legal experts question whether the president has the authority to change the lake's name, which is shared by both countries. The renaming applies only to U.S. federal usage and does not affect Canadian jurisdiction.