Delta State Governor, Rt. Hon. Sheriff Oborevwori, has congratulated, Dr Ngozi Okonjo-Iweala, on her reappointment as Director-General of the World Trade Organisation, (WTO) on Friday.  Okonjo-Iweala, an illustrious Deltan from Ogwashi-Uku, was a two-time Minister of Finance, who led Nigeria’s economy to…