PL Senator Enters the Race for Senate Presidency
The October 4 election could define the strength of the right in Congress

The first round of the October 4 elections decides not only who will occupy two Senate seats, but also who will be in a position to run for the house presidency in February 2027. Senator Rogério Marinho (PL-RN) emerges as one of the main right-wing figures seeking to vie for the leadership of the institution.
What drives Rogério Marinho's candidacy
Marinho, the opposition leader in the House, has sought to expand the PL caucus in the Senate. The strategy relies on increasing the number of seats held by right-wing representatives, especially those who champion the impeachment of Supreme Court justices as a banner.
How the election results could influence the internal race
If the PL secures a sufficient number of senators, Marinho's candidacy to lead Congress becomes competitive. Otherwise, he will need support from Centrão lawmakers to make his election viable.
Relationships among the main candidates for Senate president
The current president, Davi Alcolumbre (União-AP), is seeking reelection with backing from the government base. On the other side, Tereza Cristina (PP-MS) has also expressed interest in running, supporting the candidacy of Flávio Bolsonaro (PL-RJ) for the Planalto Palace. Marinho has been coordinating Flávio's campaign, but has not yet received a formal invitation to join the ticket.
Impact of the Senate's composition on the political agenda
The renewal of 54 of the 81 seats could alter the dynamics of passing bills, provisional measures, and constitutional amendments. The strength of the right wing, represented by names such as Marinho, could influence debates on agendas like the proposal to abolish the 6x1 work schedule.
Outlooks for Senate leadership in 2027
With the presidential race still underway, the positioning of senators after the first round will be decisive. If Lula maintains an advantage, Alcolumbre may accelerate debates favorable to the administration; if the PL candidate advances, the strategy could shift, leaving the conclusion of proposals until after the presidential contest.
With information from Valor Econômico, CNN Brasil.
Source: Valor Econômico, CNN Brasil