On March 18, 2023, the Liberal Party (PL) formally announced the pre-candidacies of Éder Mauro for the Senate and his son Rogério Barra for the Chamber of Deputies for the upcoming elections scheduled for 2026 in Brazil. This announcement was made by Senator Flávio Bolsonaro, who himself is a pre-candidate for the presidency, through social media, highlighting the PL's strategy to strengthen its political presence in Pará.

Rogério Barra has a notable political background; he previously served as president of the state PSL from 2018 to 2019, and also held the role of Secretary of Justice and Human Rights in Pará from 2019 to 2020. Following his previous accomplishments, he was elected as a state deputy in 2022, showing a trajectory that reinforces his qualifications for a national legislative role.

The elections in Pará are set for October 4, 2026, where voters will cast their votes for president, governor, and various legislative positions, including senators and both federal and state deputies. Ahead of this significant electoral event, the Regional Electoral Court of Pará (TRE-PA) has scheduled outreach efforts to assist voters with registration and participation processes, underlining the importance of these elections in shaping the state's political landscape.