Alpha Media Holdings (AMH) owner Trevor Ncube has admitted he was "wrong" to assume President Emmerson Mnangagwa would govern better than Robert Mugabe. Ncube, one of Mnangagwa's biggest cheerleaders during a 2017 military coup, says the 79-year-old Zanu-PF leader has turned out worse than Mugabe, who ruled Zimbabwe for 37 years and died in September…