On the eve of Brazil's national election, President Luiz Inácio Lula da Silva and his primary opponent, Flavio Bolsonaro, conducted their concluding campaign rallies in the state of São Paulo. As the state holds approximately 20% of the country's total electorate, both candidates prioritized the region to energize their respective bases and appeal to undecided voters.

The election is described as a highly competitive contest, with polls suggesting a narrow margin between the two candidates. The final day of campaigning was characterized by efforts to maximize turnout in a state that serves as a critical battleground for the presidency. While the candidates focused on their closing arguments, the atmosphere surrounding the vote remains tense due to the closeness of the race.

There is a notable discrepancy in the reporting regarding the candidates involved. France24 identifies the challenger as Flavio Bolsonaro; however, public records and general election data indicate that the primary challenger to Lula in the 2022 Brazilian election was former President Jair Bolsonaro. This report reflects the information provided in the source text, which names Flavio Bolsonaro as the central figure opposing the incumbent.