Gunmen, on Saturday night, forced themselves into the residence of the former minister and, in the process, injured four security personnel.
They thought Obi would not be able to do much, but were surprised by the outcome of the 2023 presidential election, which showed that the youths were not joking.
Mr Musa said Mr Ombugadu polled 247 votes to defeat retired Major General Nuhu Angbazo who scored 203 votes.
Mr Maku confirmed his withdrawal to reporters at the venue of PDP governorship primary election.
Mr Maku, who until his return, was the National Secretary of the All Progressives Grand Alliance (APGA), said he was sorry for leaving the PDP in 2015.
“I therefore call on Governor Abdullahi Sule as well as the Nasarawa State Emergency Management Agency (NASEMA) to come to our aid.
