Brasília (AFP) – Brazil’s powerful speaker in the lower house of Congress, Eduardo Cunha, will be tried on bribery charges, the supreme court said Thursday, injecting new drama into a sprawling corruption crisis.

Cunha, a key opponent of President Dilma Rousseff, is accused of taking $5 million in bribes as part of a vast embezzlement and bribery network centered on the country’s national oil company Petrobras.