Senate President Ahmed Lawan has just inaugurated former Imo State governor Rochas Okorocha as Senator representing Imo West Senatorial District.
Okorocha was not inaugurated on Tuesday because he had yet to collect his certificate of return from the Independent National Electoral Commission.
Some reports said he was denied access to the National Assembly.
But later after the inauguration of the National Assembly, INEC issued him with his certificate of return.
His election has been shrouded in controversy after the INEC Returning Officer in his area said he declared him the winner under duress.
The matter is yet to be fully determined by the court.