[9][12][13] During the Parliamentary Commission of Inquiry into COVID-19, he was summoned by Senator Marcos Rogério (DEM) for having been the rapporteur of the CPI into the management of the COVID-19 pandemic in the state of Amazonas.

[20][21] After his participation in the CPI, Fausto sued Omar Aziz for abuse of authority, insult, threats and defamation in a criminal complaint to the Supreme Federal Court (STF).

[24] After a decision by Judge Maria Eunice Torres, Aziz won the case, which led to Fausto being ordered to pay compensation of eighty thousand reais.

[4] On the presidential front, he declared his support for far-right candidate Jair Bolsonaro against Luiz Inácio Lula da Silva.

[26] In January 2024, he took a leave of absence from office to take over as Secretary of State for Sanitation, Housing and Urban Development of Manaus (Sederub) in the government of Wilson Lima.