US President Donald Trump has spent his second term threatening takeovers of various other countries, from Canada and Cuba to Greenland, and on Monday he shared on social media a map that fueled fresh fears of his imperialist "Donroe Doctrine."

The map on Trump's Truth Social platform shows the US flag over not only the United States but also Canada, Greenland, Iceland, Mexico, and multiple countries in Central America and the Caribbean.

The post was swiftly condemned across platforms, with Congressman Jonathan Jackson (D-Ill.) declaring that "this is unacceptable."

Journalist Stephen Robinson wrote on X that "another world leader posting something like this would have to apologize before their immediate removal."

Amy McGrath, a retired Marine fighter pilot and former Democratic US Senate candidate from Kentucky, wondered, "What would we do and say if the Chinese president posted a map of China taking over the Western Pacific?"

Carl Bildt, co-chair of the European Council on Foreign Relations and former prime minister of Sweden, similarly said: "What would happen if Xi Jinping posted a map where [China] has taken over all of East Asia, and [President Vladimir] Putin one of [Russia] having absorbed all of Western Europe? It would have been seen as either insane or dangerous—or both."

While some critics called Trump "absolutely bonkers" and "f*cking insane," Dr. Brian Goldman, a Canadian emergency physician who's also an author and broadcaster, asserted: "That's not insanity. That's intention."

Democratic strategist Michelle Kinney agreed, saying: "As always, he is telling us what the plan is. We must take it seriously."

Melanie D'Arrigo, executive director of the Campaign for New York Health, suggested that "the reason why Republicans attack education is so that people don't recognize the history that repeats itself."

Without directly mentioning Trump or his map, Mexican President Sheinbaum said in Spanish on Monday, "We reaffirm that Mexico neither is nor will be a colony or protectorate of any foreign country. Proudly we are a free, independent, and sovereign nation."

While Trump is a prolific poster, the map followed a series of posts from Sunday – including other maps and images produced with artificial intelligence – that led progressive influencer Harry Sisson to conclude that the president was "having a mental health episode online" and call for his removal from office.