The Senator representing Delta Central Senatorial District in the National Assembly, Ovie Omo-Agege, was on Tuesday absent from plenary.
The Senate had said it will not stop Omo-Agege from attending plenary on Tuesday, in compliance with a Federal High Court order.
The lawmaker had vowed to attend Tuesday’s session despite the reported beefing up of security by the National Assembly authorities.
A Federal High Court in Abuja nullified the suspension of Omo-Agege for 90 days by his colleagues and declared it illegal.
Justice Nnamdi Dimgba ordered his reinstatement with immediate effect.
He was suspended by the Senate because he openly criticised the amendment of election sequence, accusing the senators of disfavouring President Muhammadu Buhari.