Brazils presidential candidates Dilma Rousseff (L) of Workers Party (PT) and Marina Silva of Brazilian Socialist Party (PSB)
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Brazil's final presidential election debate before vote

The final presidential election debate has taken place in Brazil ahead of Sunday's vote after what has been a tight and tiring campaign.

Incumbent President Dilma Rousseff from the Workers Party is standing for a second term in office - and the latest opinion polls point to her strengthening her support.

However, with a weakening economy and rising crime, she has been pushed close in recent weeks by former environmental campaigner Marina Silva.

Wyre Davies reports from the debate in Rio de Janeiro.

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