ANC president Cyril Ramaphosa (right) toasts with former president Jacob Zuma and secretary general Ace Magashule (left)  during  ANC anniversary celebrations, in January.  Photograph:  Rajesh Jantilal/AFP/Getty Images

South Africa’s ruling party has come out strongly in defence of its secretary general, Ace Magashule, after he was accused in a newly released book of(...)