BRASÍLIA, Brazil — President Luiz Inácio Lula da Silva won a fourth, nonconsecutive term Sunday, defeating Sen. Flávio Bolsonaro in Brazil’s presidential runoff, according to official results with more than 96% of votes counted. Lula received more than 51% of the vote, compared with more than 48% for Bolsonaro, the 45-year-old son of former President Jair Bolsonaro. The result extended the political career of Lula, 80, and blocked a return to power for the Bolsonaro family, whose campaign had promised closer ties with President Donald Trump. The vote was disrupted by disputes over access to polling places and a late order extending voting. Lula’s campaign sought extra hours, saying reduced bus service in some localities had made it harder for voters to reach polling stations. Bolsonaro also requested an extension, pointing to heavy rain in some states. Supreme Court Justice Cristiano Zanin ordered polling to remain open two hours past the usual 5 p.m. closing time. But the order arrived after some polling stations had already deactivated their electronic voting machines. In Rio de Janeiro, accountant Manuela Tunas, 36, said she arrived shortly after 6 p.m. after a delayed flight but was unable to vote. “If some people can vote, and others can’t, it’s unfair,” she said. The close contest drew international attention because of its potential implications for Brazil’s democracy, the Amazon rainforest and the broader right-wing movement in Latin America. Lula campaigned on continuity and social spending, while Bolsonaro pledged to pardon his father, who is serving a 27-year prison sentence for plotting to overturn his 2022 election loss to Lula. Lula now faces a country whose voters remain sharply divided. Political scientist Jairo Nicolau said this election was marked by the strength of political loyalties, with identity and group affiliation weighing heavily against differences over policy. The narrow margin and voting-day disruptions are likely to keep questions of trust and electoral fairness in focus as the new term begins.