Interesting commentary from Patrick Lawrence, originally from the Sunday Independent in South Africa: Zuma can challenge Mbkei, if he wants to.
A motion of no confidence by allies of newly elected ANC head Jacob Zuma against the now lame-duck administration of President Thabo Mbeki is apparently being considered…
thereby bringing the Mbeki administration to a premature end and terminating the dichotomy between a Zuma-controlled ANC and an Mbeki-controlled government, which is so irksome to the new order in the ANC.
The author analyzes the political considerations–the intra-ANC ones are about all that count here–and suggests:
Taking all these considerations into account, a motion of no-confidence in Mbeki, a call for the dissolution of parliament and an early election seem almost certain to succeed.
Whether Zuma will take this route and incur the risk of aggravating the existing animosities within the ANC and of launching the political equivalent of a civil war remain to be seen.
The current dual leadership is indeed anomalous for what is in fact a parliamentary system. However, one might think that if it was clear that the Zuma forces could muster the votes, Mbeki would be prevailed upon to resign rather than to face the spectacle of losing a vote of no confidence in a parliament in which his party has almost three fourths of the seats.