Zambian President Levy Mwanawasa has made his anti-corruption campaign the hallmark of his administration, hoping to persuade voters to give him a second term in next year's elections. Now it may well secure his ousting. The campaign has won Mwanawasa powerful enemies within the circle of former President Frederick Chiluba, the man the anti-graft efforts have largely targeted, while some senior figures in his own administration are unsure of whether they may be next in line for investigation.