Luiz Inacio Lula da Silva secured a historic fourth term as Brazil’s president on October 25, overcoming an initial deficit in the first round of voting and defeating Senator Flavio Bolsonaro, the eldest son of former President Jair Bolsonaro. Lula obtained 51.79% of the valid votes, compared with Bolsonaro’s 48.21%, according to Brazil’s electoral authorities. The outcome marked a significant political comeback for the 80-year-old leader, who had previously been hesitant to engage with social media platforms.

Following Lula’s second-place finish in the first round on October 4, Brazil experienced a surge of youth-led political activism. Students and young activists organized widespread demonstrations across major cities such as Rio de Janeiro and Sao Paulo, expressing concern over the country’s political trajectory. Analysts noted that these protests were largely spontaneous and caught many members of Lula’s Workers’ Party off guard. The movement injected new momentum into Lula’s campaign, which had previously struggled to resonate with younger voters.

A notable element of Lula’s successful comeback was the use of a large-scale WhatsApp network called Lula’s Army. Established by Brazilian lawmaker André Janones, this digital group amassed over 10 million participants, who shared videos, distributed campaign messages, and engaged in political discussions online. Experts observed that Lula’s network, with approximately 10.8 million members, significantly outpaced Bolsonaro’s comparable online group, which counted around 2.1 million participants. While the exact impact on voting behavior is difficult to quantify, the digital mobilization played a key role in amplifying Lula’s reach.

In addition to grassroots activism and digital organizing, Lula adjusted his online communication style during the campaign. Moving away from traditional speeches, he utilized informal selfie videos and brief social media posts to connect with voters. This shift marked a departure for a leader who had previously shown reluctance toward smartphones and social media, enabling the campaign to compete in a digital landscape often dominated by right-wing political forces.

However, analysts caution that social media alone did not determine the election result. Lula increased his vote count from approximately 53.9 million in the first round to 64.3 million in the runoff, with voter participation rising overall. Factors influencing the final outcome included not only online campaigning and street protests but also social policies, efforts to appeal to undecided voters, and public concerns over the Bolsonaro administration’s record.

The election also highlights broader changes in how Brazilians, especially younger populations, consume news and political content. Platforms such as Instagram, WhatsApp, and TikTok have become central to information dissemination, with nearly one-fifth of Brazilians under 25 reportedly using artificial intelligence chatbots for news access. These evolving media habits present fresh challenges for political parties seeking to engage the country’s youth.

Looking ahead, Lula faces a Congress with substantial right-wing representation, which could constrain his ability to implement policy reforms despite his electoral victory. His recent success demonstrates the potential influence of youth mobilization and digital networks in reviving political campaigns, but the extent to which this momentum will translate into sustained political power remains uncertain.