Eduardo Cunha, president of Brazil’s lower house of parliament, who has been accused of accepting a $5 million  bribe in return for helping a company win contracts to supply  oil giant Petrobras with drill ships. Photograph: Miguel Schincariol/AFP/Getty Images

Brazil’s political crisis has entered a new and more volatile phase with last week’s decision by federal prosecutors to formally charge the powerful p(...)

The Petrobras bribery scandal that has dogged Brazil’s politics for some years shows no sign of flagging. Prosecutors are expected shortly to unveil n(...)

Dilma Rousseff: The president’s  Workers’ Party administration is now engulfed in a huge corruption scandal and struggling to navigate the country’s worst recession in two decades.   Photograph: Jonathan Ernst/Bloomberg

Standing on a corner of São Paulo’s main avenue, holding a banner demanding “Impeachment Already”, Michele Pick and Maria Necela Sampaio were clear ab(...)

Demonstrators hold signs during a protest in Sao Paulo, Brazil, during a protest in Sao Paulo, Brazil, on Sunday. Nationwide street protests against Brazilian president Dilma Rousseff are keeping pressure on the government. Photograph: Patricia Monteiro/Bloomberg 1:27

Hundreds of thousands of demonstrators returned to the streets in dozens of Brazilian cities on Sunday to call for the impeachment of president Dilma(...)

President Dilma Rousseff:  Hundreds of thousands are expected to take to the streets on Sunday  to demand her impeachment. Photograph: Evaristo Sa/AFP/Getty Images

Hundreds of thousands of Brazilians are expected to take to the streets on Sunday in the latest round of the campaign to force President Dilma Rous(...)

Brazilian president Dilma Rousseff. The government has denied any irregularities, arguing that it followed the law in its accounting practices last year. Photograph: AFP Photo/Evaristo Saevaristosa

The biggest threat to Brazilian president Dilma Rousseff’s hold on office may come not from a corruption scandal that has ensnared the country’s busin(...)

José Dirceu, who was detained  yesterday morning at his home in Brasília. Photograph: Nacho Doce/Reuters

Police in Brazil have arrested one of the founders of the ruling Workers’ Party, accusing him of being the mastermind behind the massive corruption s(...)

A Petrobas drilling platform in Guanabara Bay:  the company has invited rivals to bid for stakes in some of its most promising offshore oil finds. Photographer: Dado Galdieri/Bloomberg

Just a few years ago Brazil’s Petrobras had ambitions to overtake Exxon Mobile as the world’s largest listed oil company. But missed production target(...)

Brazilian president Dilma Rousseff: has vowed a “tooth and nail” defence of her mandate, accusing her opponents of “coup mongering”. But popular support for her has drained away. Photograph: Ivan Sekretarev/EPA/Pool

Nobody should mistake the recent calm of the Brazilian streets since anti-government agitation petered out for evidence that Dilma Rousseff has seen o(...)

French President François Hollande meets with parliamentarians at the Elysée Palace in Paris after revelations of US spying on French presidents. Photograph: Charles Platiau/AFP/Getty Images

French politicians yesterday vied to see who could make the most morally outraged statements about past spying by the US National Security Agency on F(...)