U.S. President Donald Trump has said he is considering renaming Lake Ontario “Lake America,” adding a new and highly symbolic dimension to the escalating trade dispute between Washington and Ottawa.

Trump made the remarks Tuesday in a post on Truth Social, linking the proposed name change directly to deteriorating economic relations with Canada's most populous province.

“The United States is giving serious consideration to changing the name of Lake Ontario to Lake America,” Trump wrote, arguing that the United States does not expect to “be doing much business with Ontario any longer.”

The proposal comes amid a sharp deterioration in U.S.-Canada trade relations following the collapse of negotiations and the introduction of steep new tariffs.

The latest dispute follows the breakdown of trade talks between the two countries last week. U.S. tariffs of up to 50% have been imposed on hundreds of Canadian goods, while Canadian Prime Minister Mark Carney has pledged retaliatory measures. Canada has said its counter-tariffs will take effect from September 8.

The trade conflict has also triggered increasingly hostile exchanges between Trump and Ontario Premier Doug Ford.

Ford sharply criticized Trump's tariff policies during a radio interview Monday, telling the U.S. president to “kiss my ass.” Trump subsequently attacked Ford on social media, calling him “Flunky Ford” and criticizing both Ford and Carney as poor leaders.

Ford later acknowledged that the dispute had become personal but said the two countries should lower the rhetoric and return to negotiations.

Canadian officials have largely dismissed Trump's proposed renaming.

Dominic LeBlanc, Canada's minister responsible for U.S. trade, said Ottawa would not respond to the U.S. president's daily social-media statements, emphasizing that the Canadian government had decided months ago not to engage with such remarks.

Ford also dismissed the proposal as rhetoric and reiterated that the focus should remain on resolving the trade dispute.

The controversy has drawn attention because Lake Ontario is a shared international waterway, bordering both Ontario and New York. The lake is jointly managed through U.S.-Canadian mechanisms, including the International Joint Commission and the Great Lakes Water Quality Agreement.

Trump could potentially direct the U.S. federal government to use a different name for the lake in American government documents, maps and other federal contexts. However, such a decision would not obligate Canada or international organizations to adopt the new name.

Because Lake Ontario is a shared waterway, Canadian authorities would retain the right to continue calling it Lake Ontario. International bodies and mapping organizations would likewise not automatically be required to recognize a unilateral U.S. name change.

The proposed renaming echoes Trump's previous decision to rename the Gulf of Mexico as the “Gulf of America” for U.S. federal purposes. That move similarly generated international debate over whether the United States could impose its preferred terminology beyond its own government.

The lake controversy comes as the dispute between Washington and Ottawa expands beyond tariffs and into questions of sovereignty, culture and national identity.

Trump has also rejected Canadian claims that U.S. demands during the failed negotiations threatened Canada's French-language policies and cultural protections. He accused Carney of making the allegation for political reasons and said he supports French Canadians.

Meanwhile, Canadian officials have emphasized that they want negotiations based on equal treatment and protection of Canadian economic and cultural interests.

With hundreds of billions of dollars in annual trade at stake, the dispute threatens to impose significant economic costs on both sides of the border. Analysts say the two countries still have incentives to return to negotiations, but increasingly confrontational rhetoric has made a rapid settlement more difficult.

For now, Lake Ontario remains Lake Ontario in Canada, while Trump's proposed “Lake America” has become another symbol of the increasingly bitter relationship between the two longtime allies. (ILKHA)