The Trump administration has revoked the US visa of Brazil's ambassador to Washington, Maria Luiza Ribeiro Viotti, marking a further escalation in diplomatic tensions between the two countries. A State Department spokesperson said the move followed weeks of communication with Brazilian officials, whom Washington accused of repeatedly delaying and obfuscating in response to US concerns, though officials stressed the ambassador has not been declared persona non grata.

The article does not specify the exact grievances behind the dispute, but it comes amid a broader deterioration in US-Brazil relations. The State Department's statement suggests the visa revocation is intended as a pointed diplomatic signal rather than a full severing of ties, since Viotti retains her formal accreditation status despite losing US visa privileges.