The Presidential candidate of the Nigeria Democratic Congress, NDC, Peter Obi, has taken a swipe at the Minister of Works, Dave Umahi, over his debate challenge. Speaking during an interview with media entrepreneur Chude Jideonwo, the former Anambra state governor said Umahi must first become a presidential candidate before inviting him to such an engagement. […] You must first become presidential candidate before debating with me – Peter Obi knocks Umahi