Brazilian President Dilma Rousseff convenes a truth commission to investigate Brazil's military dictatorship.
The Brazilian Supreme Federal Court releases a plea bargain testimony from JBS S.A., revealing that the company paid 500 million reais in bribes to politicians, including current President Michel Temer and his predecessors Dilma and Lula.
Acting on a request from Brazil's top prosecutor, Supreme Court Justice Teori Zavascki suspends President of the Deputies Chamber Eduardo Cunha for obstructing the Petrobras corruption investigation. The full court confirms this action, Cunha is eliminated from the line of succession to President Dilma Rousseff, who may be suspended from office next week.
Clashes erupt outside the presidential palace in Brazil's capital Brasília between anti-Workers' Party protesters and supporters of ex-president Luiz Inácio Lula da Silva, where he was due to be sworn in as President of Brazil Dilma Rousseff's chief of staff. Hundreds of anti-government protesters calling for Rousseff's impeachment and Lula's arrest also blocked the central Paulista Avenue in São Paulo, Brazil's largest city and economic hub.
Brazil's ex-president Luiz Inácio Lula da Silva takes Cabinet post as chief of staff to Brazil's current president, Dilma Rousseff, thereby gaining legal shield. Only the Brazilian Supreme Court can try presidential Cabinet members for crimes.
Tens of thousands of Brazilians protest in cities around the country to demand that Congress impeach President Dilma Rousseff. The lower house of Congress opened impeachment proceedings on 2 December 2015.
Brazil's Federal Accounts Court (TCU), in a unanimous 8-0 decision, rules that President Dilma Rousseff's government manipulated its accounts in 2014 to disguise a widening fiscal deficit. The ruling, while not legally binding, is expected to be used by opposition lawmakers who are calling for impeachment proceedings.
Crowds gather throughout Brazil to demand the impeachment of President Dilma Rousseff due to a bribery and corruption scandal involving senior members of the governing Workers' Party. Recent polls show her approval ratings below 10%.