Caracas on Saturday announced it was withdrawing Brazil’s authorization to represent Buenos Aires’s interests in Venezuela, which had been granted following the expulsion of Argentinian diplomats from the country in the wake of the disputed presidential election. Brazil had taken over the administration of the Argentinian embassy in Caracas since the beginning of August following the Venezuelan presidential election on July 28, which was marred by accusations of widespread voter fraud. Caracas said that Brazil’s authority to represent Argentinian interest would end immediately arguing, without…