With Arruda and Magalhães out of office, Congress, at risk of becoming ineffectual, continued to be mired in scandal as more allegations of past corruption involving Barbalho surfaced. A growing number of investigations into fraud in the state Bank of Pará, SUDAM, and the National Land Reform Institute revealed the involvement of Barbalho when he was governor of Pará and minister of land reform. Barbalho took a leave of absence from his post as senate president on 20 July. In the face of mounting evidence and the likelihood of impeachment, he resigned from the Senate on 4 October, following the same path of Magalhães and Arruda.