Brazilian Senate President Davi Alcolumbre is mobilising cross-party support and targeting defectors from the right-wing Liberal Party to secure his re-election in February 2027.
Allies close to the Senate leadership estimate that Alcolumbre will secure between 47 and 49 votes in the 81-seat chamber, according to reporting by CNN anchor Tainá Falcão on Bastidores CNN. That tally comfortably exceeds the 41 votes required to win the secret ballot.
The projected coalition brings together government loyalists, leftist groups, centrist parties, and members of the right. It also counts on at least three votes from the Liberal Party, known in Brazil as the PL, which has put forward Senator Rogério Marinho of Rio Grande do Norte as its own official candidate.
The Federal Senate is the upper chamber of the National Congress in Brasília, representing Brazil's 26 states and the Federal District. Its presidency is one of the most powerful offices in Brazilian politics, as the holder sets the legislative agenda and presides over joint sessions of Congress. Alcolumbre, a member of the União Brasil party who represents the northern state of Amapá, previously led the chamber and is seeking another term at the helm.
Potential defectors inside the Liberal Party
Two Liberal Party senators have emerged as likely supporters for Alcolumbre, according to reporting by CNN political analyst Isabel Mega. They are Efraim Filho, a close associate of Alcolumbre who formerly belonged to União Brasil, and Eduardo Gomes of Tocantins.
Government strategists running Alcolumbre's re-election campaign believe the final number of defections could be substantially higher. Those allies noted that the Liberal Party is expected to enter 2027 with at least 28 senators, remarking that there were far more than two lawmakers willing to cross the floor.
Securing those votes will depend on the concessions Alcolumbre offers to individual senators. Current negotiations involve the distribution of committee chairs, the assignment of influential bill rapporteur roles, and budgetary support for home states. Mega explained that these lawmakers are seeking key reporting briefs that align with their legislative interests or meaningful commitments for their voter bases. Marinho may also face similar pressure from colleagues to deliver concessions.
Secret ballot and Bolsonaro intervention
The Senate presidential election is conducted by secret ballot, a system that increases anxiety among party leaders about caucus discipline and hidden rebellions. The Liberal Party initially considered requiring its senators to declare their votes in public. However, party leaders abandoned the plan after concluding that the move would appear unduly authoritarian and coercive.
An influential faction of the Liberal Party is now pushing for direct intervention from former Brazilian President Jair Bolsonaro, who remains under house arrest. These party figures want Bolsonaro to issue a private appeal directly to the entire Senate caucus to prevent members from breaking rank.
Bolsonaro joined the Liberal Party in 2021 ahead of his unsuccessful 2022 re-election campaign, helping the conservative organisation expand into the largest caucus in the Senate. Even while confined under house arrest, the former army captain retains significant authority over the party's conservative grassroots and its congressional representatives.
Division over the right-wing candidacy
The Liberal Party is also attempting to unite conservative forces behind a single challenger to face Alcolumbre, opening negotiations with Senator Tereza Cristina of Mato Grosso do Sul. Cristina, who belongs to the Progressistas party, has refused to step aside immediately. She has maintained that she intends to make history as the first woman to preside over the Federal Senate.
Several senators believe Cristina's refusal to withdraw currently works to Alcolumbre's advantage. Her independent candidacy ties up conservative ballots that could otherwise be consolidated behind Marinho to challenge the incumbent leader.
Cristina's path to the Senate presidency suffered a major blow after Ciro Nogueira, the national president of Progressistas, declared his formal support for Alcolumbre's re-election bid. The announcement has created severe obstacles for Cristina within her own party organisation. Congressional strategists anticipate that right-wing factions will eventually have to narrow their options and unite behind a single challenger before the February 2027 vote.
