Lula wins unprecedented fourth term as Brazil's president

Brazilian President Luiz Inacio Lula da Silva won an unprecedented fourth term in Sunday's election, defeating conservative rival Flavio Bolsonaro, who has announced plans to challenge the result. Lula secured 51.8% of the vote against Bolsonaro's 48.2%, a margin of 4.4 million votes, after trailing in the first round. Bolsonaro, son of former far-right president Jair Bolsonaro, denounced the election as a "scam" and said he would seek to annul it. The victory marks the first time a candidate has overturned a first-round deficit since Brazil's return to democracy. Lula, who turns 81 on Tuesday, faces a limited mandate amid conservative legislative gains and has promised to regulate social media platforms.