Tensions between the US and Brazil have increased due to a visa revocation. The Trump administration revoked the visa of Brazil's ambassador to the US, Maria Luiza Ribeiro Viotti. This action is reportedly a response to Brazil's delay in approving the US candidate for ambassador to Brazil, Daniel Perez.

The State Department has described the visa revocation as a reciprocal action. Further details on this diplomatic dispute are available from the source, including comments from a high-ranking State Department official. The revocation is part of several diplomatic disputes that have developed over the last year.