South Africa's president Jacob Zuma is on the ropes. In recent months he's been dealt blow after blow, by the courts, by political opponents, even by erstwhile friends. Only the knee-jerk loyalty of the ANC has saved him from impeachment and disgrace. Stephen Sackur speaks to South Africa's trade and industry minister Rob Davies and asks: if the president won't jump, does he need to be pushed, for the good of South Africa?
