He is representing Yorro state constituency.
The tribunal had recently nullified the election that produced Mr Melaye as representative of the senatorial district at the upper legislative chamber and ordered that a fresh election be conducted.
The duo are yet to emerge officially as candidates of their party in the November 16 gubernatorial race.
The president's administration has severally claimed to defeat the violent group but attacks of the group recently says otherwise.
It also described the votes the party got during the exercise as wasted votes.
Mr Ortom re-elected for a second term in office on the platform of the Peoples Democratic Party (PDP) visited Mr Buhari on Monday.
The emirate is currently headed by Lamido Sanusi, who is reportedly engaged in a political battle with Mr Ganduje.
While the governor claims not to have paid salaries since this year, the workers are saying otherwise, insisting they have not been paid for over 30 months.
There were online reports insinuating Mr Bello had concluded plans to switch over to an opposition party in other to recontest for a second term in office.
The governor who is expected to begin his second term next month was re-elected on the platform of the Peoples Democratic Party (PDP).