Brazil’s Foreign Ministry summoned Argentina’s ambassador and simultaneously recalled its own envoy from Buenos Aires after President Javier Milei publicly insulted President Luiz Inácio Lula da Silva and a Supreme Court Justice, escalating a diplomatic crisis that now directly threatens the stability and trade framework of the *Mercosul* bloc. The Ministry of Foreign Affairs, *Itamaraty*, officially expressed “repulsion” over the “aggressions,” and the twin diplomatic moves signal the worst political freeze between South America’s two largest economies in decades.