HARARE – Zimbabwean President Emmerson Mnangagwa vowed to do “what we can to remain in power”, promising to revive an economy that has collapsed under his watch as he launched his bid for a second five-year term. Zimbabwe will hold presidential and parliamentary elections on Aug. 23 which are expected to pit Mnangagwa, 80, of the ZANU-PF party against pastor and lawyer Nelson Chamisa, 45…
