The chief foreign policy advisor to President Luiz Inácio Lula da Silva, Celso Amorim, has formally warned the Brazilian Congress that the United States is at risk of direct intervention in the country’s general election, citing the two-century-old “Monroe Doctrine” as a guiding mechanism for the alleged interference. The high-profile warning from one of Lula’s most trusted aides heightens political risk and strains US-Brazil diplomatic relations just weeks ahead of the October vote, in which the leftist incumbent faces a tight race against the far-right candidate, Flávio Bolsonaro. Amorim, a veteran diplomat and former foreign minister, told lawmakers that a recent US government video and policy statements promoting the 1823 doctrine—which originally warned European powers against colonization in the Americas—amount to an implicit threat to Brazil’s sovereignty by asserting US regional dominance.