Atu’s defection notice was announced on the floor of the green chamber by , speaker of the house, during Thursday’s plenary. 

The lawmaker represents Enugu north/south federal constituency.

The legislator cited the protracted wrangling within the opposition party, saying it has negatively affected his duties.

Ali Isa, minority whip, protested the defection and demanded that the lawmaker’s seat be declared vacant.

Abbas acknowledged his point of order but declined to rule on his demand.

On Tuesday, two members of the house — Peter Akpanke and Paul Nnamchi joined the .

Akpanke, who represents Obanliku/Obudu/Bekwara federal constituency of Cross River state, was elected on the platform of the Peoples Democratic Party (PDP).

Nnamchi, representing Enugu east/Isi-Uzo federal constituency, was an LP member.

Joseph Nwobashi, representing Ezza north/Ishielu federal constituency of Ebonyi, also formally defected from the All Progressive Grand Alliance (APGA) to the APC.

Lawmakers in recent weeks ahead of the 2027 elections.