Brazil has recalled its ambassador from Buenos Aires and downgraded its diplomatic relationship with Argentina, after Argentine President Javier Milei publicly attacked Brazilian President Luiz Inacio Lula da Silva in personal terms [1]. Milei described Lula as "a thief," as "corrupt," and as "a convict" [1].
The recall is paired with a downgrade to the level of charge d'affaires. In diplomatic practice, that means the top post at Brazil's embassy in Argentina is no longer held by an ambassador, the highest-ranking envoy who personally represents the head of state, but by a charge d'affaires, a lower-ranking official who runs the mission in an ambassador's absence. The channel between the two governments stays open, though at a deliberately reduced rank that signals displeasure short of a full break in relations.
The two countries are South America's largest economies and founding members of the Mercosur trade bloc, which means their working relationship carries weight well beyond protocol. A downgrade of this kind complicates the coordination on trade and regional policy that ordinarily runs through ambassadors.
Milei, a libertarian, and Lula, of the Brazilian left, occupy opposite ends of the region's political spectrum and have clashed rhetorically before. What moved this exchange from rhetoric to a formal diplomatic response was the personal nature of the insults and Brasilia's decision to answer them at the level of state-to-state relations rather than with a war of words.