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 like I am Bulgarian, even though I have never been in the country where my father was born. My father died when I was only fifteen years old and I did not have the chance to learn Bulgarian." In November 2010, an exhibition was held in Gabrovo about Rousseff's origins. After Rousseff's election, Bulgarian Prime Minister Boyko Borisov promptly invited her for an official visit to the country. During her inauguration, he reiterated the invitation. Since her inauguration, Rousseff has received 21 letters from Bulgarian citizens. On 4 October 2011, President Rousseff visited Bulgaria for the first time ever for