Reforms needed to ensure free and fair presidential and parliamentary polls in Zimbabwe later this month have not been introduced, says PM Morgan Tsvangirai.
He also pledged to create more job as he launched his campaign at a rally in Marondera, ahead of the 31 July vote.
He is standing for president against his main rival and coalition partner, Robert Mugabe.
On Friday Mr Mugabe said it was a "do or die struggle", but urged supporters to refrain from violence.
The 89-year-old leader predicted a 90% victory for his Zanu-PF party.
There have been concerns about violence and intimidation ahead of the vote.
He also pledged to create more job as he launched his campaign at a rally in Marondera, ahead of the 31 July vote.
He is standing for president against his main rival and coalition partner, Robert Mugabe.
On Friday Mr Mugabe said it was a "do or die struggle", but urged supporters to refrain from violence.
The 89-year-old leader predicted a 90% victory for his Zanu-PF party.
There have been concerns about violence and intimidation ahead of the vote.