johannesburg nkosazana dlamini-zuma fierce campaigner racial inequality whose hostility big business rattle investors south africa also one two front runners country next president 68-year-old vie succeed ex-husband president jacob zuma leader rule african national congress party vote weekend outcome would make favourite presidency parliamentary election due 2019. medical doctor former chair commission african union pan-continental group dlamini-zuma pledge campaign radically tackle racial inequality persist south africa 23 years end white minority rule backers main rival deputy president cyril ramaphosa say peddle populist rhetoric would rule mould former husband whose decade power plague corruption scandals dlamini-zuma decline interview story choice dlamini-zuma ramaphosa influence south africa economic policy trajectory well country role africa beyond investors worry dlamini-zuma hostility towards international company say form part white monopoly capital cabal dominate south africa wealth dlamini-zuma victory would signal sharp rhetorical shift towards leftist economic policy say john ashbourne africa-focused economist capital economics credit rat downgrade would almost inevitable yet dlamini-zuma supporters point commitment change live south africa black majority lynne jones psychiatrist author live dlamini-zuma students together english city bristol 1970s say determination fight injustice root personal story jones remember day four decades ago dlamini-zuma lay bed weep force miss brother funeral apartheid-era security service hound south africa fiercely intelligent determine say jones someone put whole life line give home family believe eye-opening race ramaphosa unionist-turned-millionaire businessman dlamini-zuma close call political analysts say campaign team tell reuters write comment confident would elect anc leader ramaphosa popular among swathe anc disillusion zuma promise end corruption boost flatlining economy deliver job poor country quarter population unemployed dlamini-zuma contrast african nationalist support influential anc youth women league tend support socialist policies know fierce temper hostility towards west describe one 2001 u.s. diplomatic cable wikileaks truculent petulant foreign minister another cable washington suggest could charm belie reputation fierce formidable minister soft speak smile meet articulate gentle candid warm donald gip u.s. ambassador south africa write 2010. common criticism dlamini-zuma behold zuma powerful patronage network zuma publicly endorse bold fool someone trust zuma tell rally recently couple meet swaziland 1980s anc underground marry decade four children together rare interview last month dlamini-zuma challenge opponents find evidence corruption long political career loot government coffers never do tell ann7 television senior figure anc do enough distance corruption scandals dog president zuma say anything state capture anc chief whip jackson mthembu tell reuters use south african term describe private interest unduly control government fund dlamini-zuma say accusations piggy-backing zuma insult give career first doctor anc leaders fight apartheid cabinet minister every south african president since 1994. health minister nelson mandela cabinet lay foundations free public healthcare poor take hard line smoke make medicine accessible foreign minister foster friendships african countries emerge economies like china even anger west also make errors judgment 1996 dlamini-zuma award contract million friend play sarafina ii raise awareness aid late find ignore tender rule political analyst ralph mathekga say pal comparison recent government malpractice say 14 million rand sarafina scandal seem like peanuts compare loot zuma graphic 'anc election south africa click graphic 'south african economy click 'fierce formidable dlamini-zuma eye south africa 's presidency