Mr Okupe announced his withdrawal during a press conference in Abeokuta on Wednesday.
The Rivers governor said he has the courage and resources to dislodge the ruling All Progressives Congress from power at the ballot box.
Mr Obi made his intentions public during a visit to Anambra Traditional rulers on Thursday.
Mr Obi in a series of tweets on Thursday faulted the Buhari regime for its continued borrowing, saying that the country spends 90 per cent of its revenue to pay debts.
Bola Tinubu, Vice President Yemi Osinbajo…and Governor Aminu Tambuwal are warming up for the 2023 race, ignoring the call for a power shift to the South-East.
“Nigeria has a problem…If they have given you the opportunity, what are you going to do to make sure that Nigerians benefit?”
Mr Obi reiterated that “education is the most important investment any nation can make.”
Messrs Abaribe and Obi took to Onitsha Drug Market to drum up support for PDP governorship candidate in the Anambra election Valentine Ozigbo.
The civil rights group wants the ICPC to begin investigating the personalities indicted in the report.
