Bitter rivals on ballot in Zimbabwe

This combination of two recent pictures taken in Zimbabwe shows (at L) Zimbabwe's president and leader of the Zimbabwe African National Union -Patriotic Front (ZANU-PF) Robert Mugabe, and (at R) Zimbabwe's Prime Minister and Movement for Democratic Change (MDC) leader Morgan Tsvangirai. Zimbabwean Prime Minister Morgan Tsvangirai on July 27, 2013 warned President Robert Mugabe not to "steal" a crunch vote next week, so that his veteran rival could exit office with dignity. "Mugabe stole an election in 2002, he stole the election in 2008. This time we want to tell him that he will not steal again, " Tsvangirai said to thousands of supporters. AFP PHOTO / JEKESAI NJIKIZANAJEKESAI NJIKIZANA/AFP/Getty Images
This combination of two recent pictures taken in Zimbabwe shows (at L) Zimbabwe's president and leader of the Zimbabwe African National Union -Patriotic Front (ZANU-PF) Robert Mugabe, and (at R) Zimbabwe's Prime Minister and Movement for Democratic Change (MDC) leader Morgan Tsvangirai. Zimbabwean Prime Minister Morgan Tsvangirai on July 27, 2013 warned President Robert Mugabe not to "steal" a crunch vote next week, so that his veteran rival could exit office with dignity. "Mugabe stole an election in 2002, he stole the election in 2008. This time we want to tell him that he will not steal again, " Tsvangirai said to thousands of supporters. AFP PHOTO / JEKESAI NJIKIZANAJEKESAI NJIKIZANA/AFP/Getty Images

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    Bitter rivals on ballot in Zimbabwe

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The candidates from Zimbabwe's last election in 2008 are back on the ballot. CNN's Errol Barnett reports.