The United States says it will no longer support a power-sharing government in Zimbabwe that includes President Robert Mugabe. America had originally backed the deal signed in September, for an administration that was supposed to include the opposition MDC party. But the agreement has yet to lead to a government. Now the top US envoy in Africa says Mugabe has reneged on the power-sharing plan, and he is completely out of touch.US Assistant Secretary of State Jendayi Frazer told reporters in neighbouring South Africa: “Robert Mugabe is a barrier to progress and he should step down, he should retire, his time is over. The power-sharing agreement should be implemented with someone other than Robert Mugabe as the President.” Frazer repeated accusations that Mugabe’s policies had turned a once prosperous nation into a failed state, where food is scarce and hyper-inflation is making money worthless. On top of that, a cholera epidemic has claimed more than 1100 lives.