Lula Wins Fourth Term by 4 Million Votes; Bolsonaro Files Challenge

President Luiz Inácio Lula da Silva secured his fourth non-consecutive term as Brazilian leader on Sunday, winning the presidential runoff by a margin of nearly 4 percent. The 80-year-old incumbent received more than 64 million votes, while his opponent, Senator Flávio Bolsonaro, garnered just under 60 million. Lula is scheduled to take office on January 5, 2027.

The election result follows a chaotic extension of voting hours that both candidates requested. Lula cited transportation issues in the metropolis of São Paulo and the northeastern city of Salvador. Bolsonaro pointed to heavy rains in the south, a region where he won the first round by a strong margin. A Supreme Court justice approved the extension mere minutes before the original 5 p.m. closing time, leaving many polling stations unaware until they were already wrapping up.

Senator Flávio Bolsonaro stated on Sunday that he plans to request an annulment of the election. His father, former President Jair Bolsonaro, is serving a 27-year sentence for a coup attempt and unsuccessfully contested the 2022 loss to Lula. Flávio Bolsonaro visited his father, who is under house arrest, on Monday, according to the younger senator's public relations office.

U.S. President Donald Trump suggested on Monday that the reelection was rigged. Speaking to reporters before flying to Mississippi, Trump said, "Elections have to be indisputable and it looked very bad to me." He added, "I thought it had a very bad look, the way it was tabulated," and called it "another rigged election, frankly." He provided no evidence for these claims.

Lula's victory was driven by a surge in voter turnout. The runoff attracted 14.1 million additional voters compared to the first round. Analysts estimate that three-quarters of these new votes went to Lula. The second round recorded the fewest abstentions in history, reversing a record high in non-voters from the first round. Lula achieved his highest gains in lower-income municipalities, mobilizing former non-voters and supporters of third-party candidates.

Lawmaker André Janones led the digital campaign for the incumbent. His team built a WhatsApp channel called "Lula's Army" that gathered almost 11 million people. They used aggressive social media messaging to mobilize uncommitted voters. Professor Oliver Stuenkel of Fundação Getulio Vargas noted that Janones embraced the right's style of intense, constant messaging. This strategy shifted after the lackluster performance and infighting seen in the first round.

Juliano Cortinhas, a professor at the University of Brasília, said the social media initiative helped pressure Meta, the owner of WhatsApp and Facebook, to end perceived bias. Brazil’s top electoral court ruled on October 15 that Meta must adopt measures to assure equal treatment of candidates. Cortinhas stated that major platforms were using algorithms to repost far-right content without doing the same for the left.

Kassio Nunes, president of Brazil’s electoral authority, recognized Lula’s victory on Sunday. Nunes was appointed to the Supreme Court by former President Jair Bolsonaro. Brian Winter, editor-in-chief of Americas Quarterly, described the legal challenge as an uphill battle for Flávio Bolsonaro, noting that important Brazilian power brokers are closing ranks behind Lula, sometimes begrudgingly. Winter said he senses that key figures do not want a truly contested election.

Jorge Henrique Oliveira Sena, a 26-year-old maintenance worker in Brasilia, did not vote in the first round. He cast his ballot for Lula in the runoff, stating, "It’s not a question of supporting, but between the two, I had more of a connection with him." Brazil has used electronic voting machines since the 1990s to combat fraud, a system that has remained largely reliable with quick tallying.

Lula faces challenges in his upcoming term, including political polarization and a right-wing Congress where Bolsonaro's party holds the most seats. Flávio Bolsonaro remains a senator until January. Benjamin Gedan, senior fellow at the Stimson Center, said false claims of fraud are becoming commonplace but dangerous. Winter warned that the Bolsonaro family can make life difficult for Lula for weeks and months to come.