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
Workers' Party (Brazil) His successor Dilma Rousseff, also a member of PT, took office on 1 January 2011. Both born from the opposition to the coup d'état of 1964 and the subsequent military dictatorship, PT and the Brazilian Social Democracy Party (PSDB) from 1994 to 2014 were the biggest adversaries in contemporary Brazilian politics, with their candidates finishing either first or second on the ballot on the last six presidential elections. Both parties generally prohibit any kind of coalition or official cooperation with each other. Despite its large number of supporters, the party has been involved in a number of corruption scandals since