Brazil’s anti-corruption movement is shaking the country’s established political order and has pushed the country’s legislative and judicial powers to the brink of a constitutional conflict this week.

Brasilia, the political capital, was already in a state of nervous excitement after last week’s news that construction giant Odebrecht had signed up to a leniency settlement requiring the company and 77 of its executives to make full and frank disclosure of any facts relevant to the “Car Wash” corruption probe.