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Brazilian President Dilma Rousseff gestures during a meeting with French Minister of Foreign Affairs Laurent Fabius (out of frame) at Alvorada Palace in Brasilia on November 22, 2015. Fabius visits Brazil to discuss the Climate Conference COP 21 scheduled to take place in Paris next December. AFP PHOTO/EVARISTO SA (Photo credit should read EVARISTO SA/AFP/Getty Images)

Brazilian President Dilma Rousseff gestures during a meeting with French Minister of Foreign Affairs Laurent Fabius (out of frame) at Alvorada Palace in Brasilia on November 22, 2015. Fabius visits Brazil to discuss the Climate Conference COP 21 scheduled to take place in Paris next December.    AFP PHOTO/EVARISTO SA        (Photo credit should read EVARISTO SA/AFP/Getty Images)

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BRASILIA, BRAZIL - MARCH 17: Brazil President Dilma Rousseff holds a paper as she speaks as former president Luiz Inacio Lula da Silva is sworn in as the new chief of staff on March 17, 2016 in Brasilia, Brazil. His controversial cabinet appointment comes in the wake of a massive corruption scandal and economic recession in Brazil. (Photo by Igo Estrela/Getty Images)

BRASILIA, BRAZIL - MARCH 17:  Brazil President Dilma Rousseff holds a paper as she speaks as former president  Luiz Inacio Lula da Silva is sworn in as the new chief of staff  on March 17, 2016 in Brasilia, Brazil. His controversial cabinet appointment comes in the wake of a massive corruption scandal and economic recession in Brazil.  (Photo by Igo Estrela/Getty Images)

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WASHINGTON, DC - JUNE 30: Brazilian President Dilma Rousseff (L) and U.S. President Barack Obama arrive for a joint news conference in the East Room at the White House June 30, 2015 in Washington, DC. Rousseff and Obama held meetings and the press conference almost two years after Rousseff accepted but then skipped an invitation to the White House due to revelations from former NSA contractor Edward Snowden that the U.S. had spied on Rousseff and other Brazilians. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - JUNE 30:  Brazilian President Dilma Rousseff (L) and U.S. President Barack Obama arrive for a joint news conference in the East Room at the White House June 30, 2015 in Washington, DC. Rousseff and Obama held meetings and the press conference almost two years after Rousseff accepted but then skipped an invitation to the White House due to revelations from former NSA contractor Edward Snowden that the U.S. had spied on Rousseff and other Brazilians.  (Photo by Chip Somodevilla/Getty Images)

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Brazilian President Dilma Rousseff attends the signing ceremony of the Code of Civil Procedure at the Planalto Palace on March 16, 2015. Brazilian President Dilma Rousseff said Monday her leftist government must talk to the people, a day after more than a million protesters hit the streets across the country. AFP PHOTO/EVARISTO SA (Photo credit should read EVARISTO SA/AFP/Getty Images)

Brazilian  President Dilma Rousseff attends the signing ceremony of the Code of Civil Procedure at the Planalto Palace on March 16, 2015. Brazilian President Dilma Rousseff said Monday her leftist government must talk to the people, a day after more than a million protesters hit the streets across the country.   AFP PHOTO/EVARISTO SA        (Photo credit should read EVARISTO SA/AFP/Getty Images)

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LISBON, PORTUGAL - MARCH 14: Former President of Brazil Dilma Rousseff speaks during a press conference at José Saramago Foundation on March 14, 2017 in Lisbon, Portugal. (Photo by Libia Líbia Florentino/Brazil Photo Press/LatinContent via Getty Images)

LISBON, PORTUGAL - MARCH 14:  Former President of Brazil Dilma Rousseff speaks during a press conference at José Saramago Foundation on March 14, 2017 in Lisbon, Portugal. (Photo by Libia Líbia Florentino/Brazil Photo Press/LatinContent via Getty Images)