Brazilian police have asked the Supreme Court for permission to question former president Luiz Inacio Lula da Silva, who they say may have benefited from the corruption scandal roiling state oil giant Petrobras.
José Dirceu, once one of the most powerful figures in the Workers' Party, will be held under preventive detention. He is serving the remainder of a prison term under house arrest for his role in a previous cash-for-votes scandal known as the "Mensalão," or "big monthly payment."