The All Progressives Congress (APC) on Wednesday asked Ali Ndume, senator representing Borno south, to resign from the party.
The party also asked the senator to vacate his position as chief whip of the senate.
The APC made the requests in a letter sent to Senate President Godswill Akpabio.
The letter was read on the floor of the upper legislative chamber on Wednesday.
Abdullahi Ganduje, national chair of the APC; and Ajibola Basiru, national secretary of the party; nominated Tahir Monguno, senator representing Borno north, to take Ndume’s place.
The APC accused Ndume of making hurtful comments against the administration of President Bola Tinubu.