[1][2] Cunha was investigated for hiding the existence of bank accounts outside Brazil and lying about it in a testimony before a Parliamentary Inquiry Commission in March 2015.
[3] On 13 October 2015, the Socialism and Liberty Party and Sustainability Network filed a motion in the Chamber Ethics Council against congressman Eduardo Cunha.
The works were cancelled due to the daily proceedings in the main floor, where it was voted the members to compose the special commission for the impeachment of President Dilma Rousseff.
Members of the Chamber who are part of Cunha's most loyal allies went against expectations and did not express their intention to ask for the disciplinary process to be suspended due to the suspension determined by the Supreme Court.
On the first council session after the court ruling, the group had an athypical behaviour during the meeting: no one emphatically supported Cunha and, when they spoke, they showed interest to speed up the works.
[8] On 17 May, attorney and Economic Law professor of University of São Paulo, Tadeu de Chiara, third and last defense witness, testified before the council and said he didn't know the congressman.
[10] On 25 May, in response to a point of order made by Carlos Marun (PMDB-RS), Interim President of the Chamber Waldir Maranhão (PP-MA) gave another favorable decision to Eduardo Cunha.
The Ethics Council chair, José Carlos Araújo (PR-BA), delayed the analysis to 8 June, after congressman Marcos Rogério asked for more time to analyze a separate vote which request for a lighter punishment of term suspension.
RIght after the result, Cunha made a quick speech stating his mandate is being repealed by his colleagues for omission of information, with a process based in accusations unproven by denouncers.
Only 10 members of the Chamber vote in favor of Cunha: Arthur Lira (PP-AL), Carlos Andrade (PHS-RR), Carlos Marun (PMDB-RS), Dâmina Pereira (PSL-MG), João Bacelar (PR-BA), Jozi Araújo (PTN-AP), Júlia Marinho (PSC-PA), Marco Feliciano (PSC-SP), Paulo Pereira da Silva (SD-SP) and Wellington Roberto (PR-PB).
[23] The suspension was requested by the Prosecutor General of the Republic Rodrigo Janot in December 2015, but justice Zavascki affirmed he had to analyze it cautiosly, as he was afraid of a supposed interference made by the Court against the Congress.