Colombia's President Gustavo Petro has for months been pushing the buttons of US counterpart Donald Trump, most recently calling him "rude and ignorant."

As the pair have sparred openly over migrant deportations, the war on drugs and the Gaza conflict, ties between Washington and one of its closest historic allies in Latin America have reached a low point.

On Sunday, Trump said he would end all aid to the South American nation, the world's biggest producer of cocaine, and labeled Petro -- Colombia's first-ever leftist president -- an "illegal drug leader."

Trump also threatened new tariffs and unspecified actions to "close up" drug cultivation in the country that produces more cocaine than any other.

Until now, Colombia has received hundreds of millions of dollars in US aid, much of it

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