As has happened in other parts of the world, the struggle for power has included foul play against the rival through social networks.

Despite the leftist candidate's lead in the polls, the truth is that uncertainty about the outcome persists in the midst of a clearly politically polarized country. One of the polls of the week just ended, that of the firm Datafolha, Lula has 52% of acceptance against Bolsonaro's 48%, practically a tie in light of the poll's margin of error.

In a report in La Nación of Buenos Aires, Marco Antonio Texeira, political scientist of the Getulio Vargas Foundation, said that "the election is totally uncertain. There is a tendency of advantage for Lula, but as we work with a margin of error, the situation is a tie. It is not possible to predict who will win".

On the other hand, in the middle of the week, Lula affirmed that "the election is very close, but we are going to win". He knows that any mistake could cost him defeat. Part of his campaign strategy is to capture the votes of abstentionists, who are historically more likely to vote in the second round.

In the first round, on October 2, Lula won, but did not reach more than 50% of the votes, forcing a second round. He obtained a lead of just over 6 million votes, a not insignificant figure, but the lowest of the two previous elections in which Lula won.

In the week just ended, the Workers' Party, which Lula helped to create in the early 1980s, mobilized to gain the support of Evangelicals, ideologically close to Bolsonaro. Even, as La Nación recalled, Lula expressed to them his rejection of abortion.

On the other side, Bolsonaro's strategy is to be generous with the most marginalized sectors of the population. This is how he has improved in the polls.