Given the way the president would be investigated and tried, it&#x27;s almost impossible to even begin collecting evidence or following any leads. The only reason Operation Lava-Jato was able to start investigating Lula is because he was no longer president, but he gained immunity when Lula was appointed Dilma&#x27;s chief of staff.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Luiz_In%C3%A1cio_Lula_da_Silva#Corruption_investigation" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Luiz_In%C3%A1cio_Lula_da_Silva...</a><p>There is at least enough proof that Dilma went out of her way to end a lead in investigations that would have led to her if she is&#x2F;was involved.