Brazilian senator Flávio Bolsonaro launched his presidential campaign in São Paulo on July 25, 2026, seeking to challenge incumbent President Luiz Inácio Lula da Silva. Backed by far-right figures including Argentina’s President Javier Milei, the candidate faces an uphill race amid domestic scandals, recent U.S. tariffs, and trailing poll numbers.
Battered by a string of political crises and trailing in early preference surveys, the eldest son of imprisoned former leader Jair Bolsonaro officially entered the October presidential race during a Liberal Party convention inside a warehouse next to São Paulo’s Pacaembu Stadium.
International Right-Wing Endorsements and Domestic Isolation
While high-profile domestic politicians largely kept their distance and centrist parties announced neutrality, the campaign secured backing from foreign allies. Argentine President Javier Milei flew to Brazil to deliver a speech characterizing the election as a fight to eliminate the progressive threat. Israeli Prime Minister Benjamin Netanyahu also offered support via a video message broadcast at the event, according to regional reporting. Meanwhile, former President Jair Bolsonaro—currently serving a 27-year prison sentence for a coup attempt following his 2022 defeat—was represented by an artificial intelligence-generated video because authorities bar him from making public addresses.
The international outreach extends beyond speeches. According to regional analysis, the candidate and his allies have attempted to leverage ties to the administration of U.S. President Donald The Guardian However, that strategy has drawn intense domestic backlash.
“This is more than a party convention. This is the beginning of the toughest battles of our life. A fight between good and evil.”
Flávio Bolsonaro, Brazilian Senator and Presidential Candidate
Polling Deficits and Recent Scandals Compound the Challenge
Recent survey data underscores the difficulties facing the challenger. A Datafolha poll released on Friday showed that President Lula would defeat the senator in a potential runoff election by 48% to 43%. In a first-round scenario, Lula led with 40% of the vote compared with 32% for Bolsonaro, followed by minor candidates including Ronaldo Caiado at 4%, and Romeu Zema and Renan Santos each at 3%.
Those numbers reflect a campaign knocked off balance by self-inflicted wounds and family friction. Support began to slide in May after the senator admitted he requested financial backing from jailed banker Daniel Vorcaro to produce a documentary film about his father. A Supreme Court justice subsequently ordered an investigation into the film’s financing. Compounding the political friction, his stepmother, former first lady Michelle Bolsonaro—a major influence among evangelical and female voters—publicly criticized him on Instagram over political disagreements before the two traded apologies and made amends ahead of the weekend gathering.
The Path to the October 4 Election
Political analysts note that the campaign has struggled to build a broad coalition. Efforts to recruit a high-profile female running mate, such as former Agriculture Minister Tereza Cristina, stalled when her Popular Party distanced itself from the ticket. Lawmaker Zé Trovão defended the lack of traditional alliances, suggesting that a strictly ideological approach could force centrist parties to negotiate later if they want to defeat the incumbent.
With Lula’s Workers’ Party scheduled to confirm the 80-year-old president’s re-election bid during its own São Paulo convention on August 2, the opposition faces a narrow window to reshape the race. As the senator navigates legal restrictions—including a Supreme Court ruling blocking him from visiting his father in prison until after the first round of voting—the country moves toward an October 4 contest defined by polarized factions and fierce regional alignments.
