Mensalão scandal funneled through an advertising agency owned by Marcos Valério. The investigation has since uncovered members of the Brazilian Social Democracy Party, DEM, Brazilian Democratic Movement Party and seven other political parties also involved. Many key advisers to Lula resigned, and several deputies were faced with the choice of resignation or expulsion from congress, though the president himself went on to be re-elected in 2006, and in 2010 Brazil elected his chief of staff, Dilma Rousseff, as president. Much of PT's leadership was affected in some way, with many resigning or failing to win re-election. Brazil's economy was widely perceived as
Dilma Rousseff presence in the cabinet increased to 26%, while the PT presence increased to almost 45%. Rousseff maintained a majority approval rating throughout her first term. In late March 2013, her government was approved by 63% of Brazilians, while her personal approval rating was at 79%, a personal high. Rousseff was also cited as the preferential candidate for 58% of the voters in the 2014 presidential election, in which she was reelected. Rousseff's popularity is attributed to popular measures of her government, such as the reduction of the federal tax in the energy bill and the exemption of federal tax in