The party expressed concern over the conduct of some LASTMA personnel.
A lawmaker, Jeremiah Umaru, also dumped the All Progressives Congress for the Social Democratic Party.
He was adopted by the party’s delegates and stakeholders from the 20 local government areas of the state.
The move followed a closed-door meeting with key stakeholders.
Mr Malumfashi said the exercise had been largely peaceful and successful in all ramifications.
The ruling was delivered on Wednesday.
Delta is a traditional PDP state and for stability and furtherance of an atmosphere for inter-party harmony and cohesion.
Mr Obasanjo has failed to deliver his polling unit for his anointed presidential candidate Mr Obi.
The court held that the appellant who also filed suit at the lower court has no locus standi to institute the action.
Mr Dantalle, who was the sole presidential candidate of the party, was overwhelmingly elected by delegates, said the party scribe.
