Only two presidential tickets in Brazil have defined their vice-presidential candidates less than three months before the general election [1].

The slow pace of ticket finalization reflects the high stakes of the October 2026 election [3], as parties seek to build broad coalitions before formalizing their slates. Because Brazilian electoral law requires parties to officialize candidates through specific conventions, the window for these strategic alliances is narrow.

One of the finalized tickets includes presidential candidate Ronaldo Caiado (PSD) and vice-presidential candidate Gilberto Kassab [1]. While other tickets remain undecided, pre-candidates such as Luiz Inácio Lula da Silva and Flávio Bolsonaro have been mentioned in recent coverage [2].

Party conventions are the primary mechanism for these decisions. These events may be held between July 20 and Aug. 5, 2026 [2]. During these gatherings, parties must formalize their candidate lists to meet legal requirements for the upcoming vote.

There is some variation in reporting regarding the scale of the field. Some reports suggest a wide array of emerging pre-candidates [2], while others state that up to 10 pre-candidates may be officialized by Aug. 5 [4].

The process of selecting a running mate is often as critical as the presidential nomination itself. By aligning with a vice candidate who brings different regional or ideological support, candidates hope to secure a wider base of voters before the October 2026 deadline [3].

Only two presidential tickets in Brazil have defined their vice-presidential candidates

The delay in announcing vice-presidential candidates suggests that Brazilian political parties are prioritizing strategic negotiation over early momentum. With the legal deadline for conventions arriving in August, the coming weeks will likely see a flurry of alliance-building intended to consolidate voter blocs before the October election.