Helena Rousseff , a former Marxist guerrilla , wins the first - round vote . She fell short of the majority needed to avoid a runoff . President José Eduardo Pereira da Silva voted for her . Rousseff will face Jose Serra in the second round .
Dilma Rousseff , a former Marxist guerrilla , wins the first-round vote . She falls short of the majority needed to avoid a runoff . President Luis Inacio Lula da Silva campaigned for her . Rousseff will face Jose Serra in the second round .