Pedestrains walk past a campaign poster of Brazilian presidential candidate Aecio Neves in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Pedestrains walk past a vote station in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves drive on a street in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A woman wearing a flag with the name of presidential candidate Aecio Neves walks in a street in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves drive on a street in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A supporter of Brazilian presidential candidate Dilma Rousseff participates in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A campaign sticker of presidential candidate Dilma Rousseff is seen pasted on a lamp pole in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A man holds a flag with the name of Brazilian presidential candidate Aecio Neves during a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves drive on a street in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A young girl holds a flag with the name of Brazilian presidential candidate Aecio Neves during a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A supporter of Brazilian presidential candidate Dilma Rousseff distributes campaign stickers during a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Dilma Rousseff participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

A supporter of Brazilian presidential candidate Dilma Rousseff participates in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Dilma Rousseff participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Campaign stickers of presidential candidate Dilma Rousseff are seen in a street in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)

Supporters of Brazilian presidential candidate Aecio Neves participate in a rally in Belo Horizonte, Brazil, Oct. 25, 2014. The next Brazilian president will be voted out between Dilma Rousseff of the Workers' Party and Aecio Neves of the Brazilian Social Democratic Party in the presidential runoff scheduled on Oct. 26, 2014. (Xinhua/Xu Zijian)