数以百万计的巴西人星期天将在总统选举中投票，预计这个月晚些时候还将进行决选的竞选和投票。
分析人士表示，争取第二个任期的迪尔玛・罗塞芙，被认为在星期天的投票中会得票最多，但是不可能获得避免决选所需要的绝对多数票。
罗塞芙总统有两位主要的对手。玛瑞纳・席尔瓦是全球环保运动的英雄，脱离执政党转投巴西社会主义党。社会民主党的阿埃西奥・内韦斯是位参议员和前州长。
批评人士说，罗塞芙总统可以依赖巴西劳工阶层的选票，受益于她的广受欢迎的前任和政治教父席尔瓦总统两个任期内启动的慷慨的社会福利项目。
Millions of Brazilians are going to the polls Sunday to vote in the presidential race that is expected to result in a runoff campaign and election later this month.
Analysts say President Dilma Rousseff, who is seeking a second term, is seen as the top vote getter in Sunday's poll, but she is not likely to win the absolute majority needed to avoid a runoff.
Ms. Rousseff has two main rivals. Marina Silva is a hero of the global conservation movement and is a ruling party defector now with the Brazilian Socialist Party. Social Democrat Aecio Neves is a senator and former state governor.
Critics say President Rousseff can count on support from Brazil's working class, thanks to generous social welfare programs initiated during the two terms of her hugely popular predecessor and political godfather, Luiz Inacio Lula da Silva.
