Dilma Rousseff candidacy. Rousseff won the Presidency by an approximate margin of 56% to 44%, and took office on 1 January 2011, as the first woman president of the country. She became the third female head of government ever in the history of Brazil, and the first "de jure" female head of state since the death of Maria I, Queen of the United Kingdom of Portugal, Brazil and the Algarves in 1816. During her presidential campaign, Rousseff underwent a makeover, replacing glasses with contact lenses, undergoing plastic surgery and adopting a different hairstyle. On 26 October 2014, Rousseff was re-elected president of
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