Since she took office, Rousseff has changed the members of her cabinet members four times. She has become the president which promoted the highest number of cabinet changes in the first six months of government. On 7 June 2011, Rousseff's then chief of staff and influential PT leader, Antonio Palocci resigned from office due to a scandal involving his personal wealth evolution. On the same day, Paraná Senator Gleisi Hoffmann (also from PT) replaced him. Three days later, Ideli Salvatti – former Santa Catarina Senator for PT and Minister of Fishing and Aquaculture up until then – traded office with Luiz Sérgio – former mayor of Angra dos Reis and licensed federal deputy for Rio de Janeiro (both for PT) and Secretary of Institutional Relations up until that moment. On 6 July, Alfredo Nascimento, then Minister of Transportation, left office after allegations that public works were being overbilled. On 4 August, Nelson Jobim left the Ministry of Defense after an interview he gave to the "Piauí" magazine criticizing both Hoffmann and Salvatti. Rousseff named Celso Amorim to replace him. Jobim had previously declared to have voted on José Serra for president. With the changes, the female presence in the cabinet increased to 26%, while the PT presence increased to almost 45%.