US revokes Brazilian ambassador's visa in diplomatic tit-for-tat
The Department of State has revoked the visa of Brazil’s ambassador, striking back at the Brazilian government’s refusal to approve Washington’s own appointed ambassador to the country.

TL;DR
- The U.S. Department of State has revoked the visa of Brazil's ambassador.
- This decision is a retaliation for Brazil's refusal to approve the U.S.-appointed ambassador, Danny Perez.
- Brazil's ambassador, Maria Luiza Ribeiro Viotti, can no longer represent her country.
- The State Department cited weeks of communication and Brazilian government delays and obfuscation as reasons for the action.