US revokes Brazilian ambassador's visa amid tensions

On August 5, 2026, the Trump administration revoked the US visa of Brazil's ambassador to Washington, Maria Luiza Ribeiro Viotti, in a spat with Lula. The step was described as tit-for-tat in escalating diplomatic tensions between the US and Brazil.

Brazil also downgraded diplomatic relations with Argentina after Milei insulted Lula, and Brazil asked for the Argentine ambassador to leave. The Wall Street Journal wrote that Trump looms over Brazil's closely fought election.