Why did Donald Trump threaten to rename Lake Ontario as Lake America?

Trump tied the idea to the worsening trade fight with Canada. He said the United States did not expect to be doing much business with Ontario any longer after Canada announced retaliatory tariffs.

What did Trump post about Lake Ontario after making the renaming threat?

He posted a map with Lake Ontario crossed out and replaced with Lake America in large gold font, alongside a U.S. flag. The map was then boosted by pro-Trump social media accounts.

How does the Lake Ontario dispute fit into Trump’s wider conflict with Canada and Mexico?

The lake threat came as Trump renewed his push for Canada to become the 51st U.S. state and as trade tensions with Canada escalated. The article also says Mexico has refused to accept his order renaming the Gulf of Mexico as the Gulf of America.

Trump threatens to rename Lake Ontario as 'Lake America'

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Summary

Trump said Tuesday he was considering renaming Lake Ontario as Lake America as his trade war with Canada escalated. He backed up the threat with a map showing the new name and linked it to reduced U.S. business with Ontario. The move followed Canada’s announcement of retaliatory tariffs after trade talks broke down on Friday. Trump also renewed his push for Canada to become the 51st U.S. state and clashed with Ontario Premier Doug Ford.

Key Facts

Lake Ontario is one of the five Great Lakes and sits on the border between Canada and the United States.
Trump said the United States did not expect to be doing much business with Ontario any longer.
Trump later posted a map with Lake Ontario crossed out and replaced by Lake America in large gold font with a U.S. flag.
Ontario Premier Doug Ford said Monday that Trump could kiss my ass and threatened a surcharge on exported electricity.
Mexico has refused to accept Trump’s executive order renaming the Gulf of Mexico as the Gulf of America on his first day back in office on January 20.

By AFP

Published Aug 26, 2026 1:14 am KST

Canada geese swim in Lake Ontario near Centre Island in Toronto, Canada, Jun.24, 2026. Picture taken with a mobile phone. Reuters-Yonhap

WASHINGTON — U.S. President Donald Trump said Tuesday he was considering renaming Lake Ontario as "Lake America" as his trade war with Canada escalated.

The threat — which Trump backed up with a map featuring the new name — mirrored his move to rename the Gulf of Mexico as the Gulf of America last year.

Trump stepped up his rhetoric as Canada announced a volley of tit-for-tat tariffs on U.S. goods after trade talks between the historically close allies broke down on Friday.

"The United States is giving serious consideration to changing the name of Lake Ontario to Lake America in that we don't expect to be doing much business with Ontario any longer," Trump said on his Truth Social network.

Lake Ontario is one of the five Great Lakes located on the border between Canada and the United States.

It shares a name with the Canadian province of Ontario, which borders the lake along with the U.S. state of New York. Toronto, Canada's largest city, sits on the northwestern shore of the lake.

Trump later posted a map with the words "Lake Ontario" crossed out and replaced with "Lake America" in large gold font with a U.S. flag, which was boosted by pro-Trump social media accounts.

The lake threat comes as Trump reups his push for Canada to become the 51st U.S. state and the trade war between the two countries escalates.

But it also reflects a peculiarly personal spat with Ontario Premier Doug Ford, who said Monday that the U.S. president could "kiss my ass" and threatened a surcharge on exported electricity.

During his second presidency, Trump has irked a series of allies with his outlandish territorial claims.

Mexico has refused to accept his executive order renaming of the Gulf of Mexico as the Gulf of America on his first day back in office on January 20.

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