The Unmaking of Eduardo Cunha and Brazil’s Reckoning With Power

For a few years in the mid-2010s, the name whispered in Brasília’s corridors carried more weight than the presidency itself. Eduardo Cunha, then the speaker of the Chamber of Deputies, had become the kind of figure who could stall a nation’s agenda or fast-track a crisis. He held the gavel that governed the legislature, yet behind closed doors he was entangled in the very allegations of corruption that were swallowing the country’s political class.
It is tempting to view Cunha as a simple villain in a larger scandal. The reality of his trajectory, however, tells us less about one man’s greed and more about how Brazil’s institutional architecture allowed a single operator to accumulate extraordinary leverage. He was not an obscure backbencher. As speaker, he commanded committee appointments, controlled floor votes, and ultimately presided over the impeachment proceedings of a sitting president—a role that placed him at the constitutional center of the state.
What made the case striking was the contrast. While he invoked procedural rigor in public, federal prosecutors were quietly mapping a network of offshore accounts linked to bribes from the state oil company Petrobras. The investigation, known globally as Operation Car Wash, did not start with him, but his fall became its most emblematic political consequence. In 2016, the Chamber voted to strip him of his seat. By the following spring, a federal court had sentenced him to prison for corruption, money laundering, and tax evasion.
A common misunderstanding among outside observers is that his removal fixed something. It did not. The machinery that produced a Cunha was built from weak party discipline, opaque campaign finance, and a culture where legislative power was traded as currency. Brazilian voters did not need a lecture on ethics; they needed to see that the shield of parliamentary immunity was not absolute. In that sense, the lengthy judicial process around him served as a crude civic lesson.
Watching the proceedings from abroad, one might assume this was a uniquely tropical dysfunction. But the pattern of a powerful envoy using administrative control to protect personal interests exists in many democracies, merely dressed in different formalities. The difference in Brazil was the sudden willingness of parts of the judiciary to test those limits.
Cunha’s story is still referenced in court filings and public debates. Yet the useful takeaway for a general reader is not the salacious detail of hidden accounts. It is the reminder that institutional strength is measured not by how many strongmen rise, but by whether the system can eventually let them fall without collapsing itself.