U.S. Pulls Brazilian Ambassador's Visa, Widening Diplomatic Pressure Campaign

The U.S. revoked the visa of Brazil's ambassador, Maria Luiza Viotti, on August 4, 2026, retaliating for Brazil's refusal to grant visas to American diplomats. She was not expelled. The step extends a campaign begun in July 2025 against Supreme Court Justice Alexandre de Moraes — widening from Brazil's judiciary to its top envoy in Washington.