Polls indicate Brazil's presidential candidates are neck and neck before Sunday's voting.
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Machado had left the country just a month before the US government seized Venezuelan President Nicolás Maduro.
Jordan's prime minister represents king at funeral for eight of the church attack victims as hunt for gunmen continues.
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Also reported by SABC News
Serbia is heading to the polls as a student movement attempts to oust longtime populist leader Aleksandar Vučić.
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Also reported by Al Jazeera
