Days before his 81st birthday, the former union leader won Sunday's runoff with 51.7 percent of the vote over 48.2 percent for his right-wing challenger Flavio Bolsonaro. Brazil President Luiz Inácio Lula da Silva won a historic fourth term, defeating his right-wing challenger Flávio Bolsonaro. Lula now faces major challenges, from rising public debt and. Lula overturned a first-round deficit to secure a historic fourth term as Brazil’s president.