Tarre has written for CSIS about corruption, democracy, and the
Chavista administrations in Venezuela, stating in 2018:Rarely has a country lived, for a period of almost two decades, in a worse combination of incompetence, mediocrity, systematic theft of public goods and money, ideological perversion, pettiness, lack of scruples, and systematic violation of human rights. ... Corruption is not compatible with democracy. We have seen this story play out in Venezuela, Italy, Brazil, Greece—and now even more recently in Spain and Mexico. He was accused in 2014 by the then mayor of the Libertador Municipality,
Jorge Rodríguez, of being one of the intellectual authors of an alleged plan to assassinate Maduro. Rodríguez claimed that
María Corina Machado had written Tarre with instructions for carrying out "the plan";
Nicolás Maduro's administration accused him, again, of being an "intellectual author" of the
Caracas drone attack against Maduro in 2018. Guaidó began to appoint individuals in late January to serve as aides or diplomats, including Vecchio as the Guaidó administration's diplomatic envoy to the US, Borges to represent Venezuela in the
Lima Group, and Tarre as the special representative from Venezuela to the OAS. Guaidó contacted Tarre by phone the night before the 22 January decision, asking him to serve as the OAS representative. Maduro's administration responded calling Tarre a "political usurper". According to
The Washington Post, this acceptance undermines Maduro's presence internationally and marks a step in the official recognition of Guaidó's government. His appointment in this way encouraged similar actions in other international forums; on 10 April the
International Monetary Fund cut off Venezuelan access until a majority of its members recognized a Maduro or Guaidó representative, and the United States Vice President
Mike Pence requested that the
United Nations replace their ambassador with a Guaidó one. In October 2022, a bloc of leftist OAS member states led a motion to remove Tarre's representation in the organization. Out of 35 members, 19 nations voted in favor of the motion and 4 against. The motion fell short of the 24 votes required for a two-thirds majority. ==Publications==