After one round of voting in Brazil, the unpredictability factor in the race for the presidency remains intact. Brazil Institute Director Paulo Sotero, discusses the latest as incumbent Dilma Rousseff and challenger Aecio Neves head toward a runoff vote on October 26th. A key for each campaign will be winning over supporters of Marina Silva, following her third place finish in round one of the voting. Sotero describes the factors and issues in play.