Silva makes big surge Brazil’s latest opinion poll shows that former Environment Minister Marina Silva has narrowed President Rousseff’s lead in the election race, paving the way for a runoff vote in which she would be likely to win the presidency FIRST ROUND (October 5) Dilma Rousseff, Workers’ Party, 34% Marina Silva, Brazilian Socialist Party, 29% Aecio Neves, PSDB, 19% SECOND ROUND (October 26) Dilma Rousseff, 36% Marina Silva, 45% Ibope survey of 2,506 people, Aug 23-25. Margin of error: ±2 points Picture: Associated Press