Adesina made his position known in a message posted on his Twitter handle, @FemAdesina.
He gave an indication that the harder the gang up against the President, the harder the fall.
“The harder they come, the harder they fall. 2019 presidential election on my mind,” the presidential spokesman wrote.
Although Adesina was not specific on the issue he was reacting to, his comment came shortly after news broke that former President Olusegun Obasanjo has endorsed the Peoples Democratic Party’s presidential candidate, Atiku Abubakar.
Obasanjo had made his position known shortly after meeting Atiku and some eminent Nigerians behind closed-doors.
Recall that the former President had scored Buhari low on governance and called on him not to seek re-election.
Buhari, however, rejected the call, sought and got the nod of the ruling All Progressives Congress for a second term in office.
He was on Saturday affirmed as the candidate of the party at its national convention held in Abuja.