Former Brazilian president Luiz Inacio Lula da Silva (L) hugs Brazilian president Dilma Rousseff during Lula's swear in ceremony as chief of staff, in Brasilia on March 17, 2016. Rousseff appointed Luiz Inacio Lula da Silva as her chief of staff hoping that his political prowess can save her administration. The president is battling an impeachment attempt, a deep recession, and the fallout of an explosive corruption scandal at state oil giant Petrobras.       AFP PHOTO/EVARISTO SA / AFP / EVARISTO SA        (Photo credit should read EVARISTO SA/AFP/Getty Images)
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