Embakasi East MP Paul Ongili alias Babu Owino on Wednesday caused a stir at Independent Electoral and Boundaries Commission officers momentarily, leading to tension for some minutes.
The youthful legislator had accompanied a section of ODM officials who were making follow-ups on the Kibra constituency by-election scheduled for November.
Earlier, ODM had accused IEBC of refusing to to avail a verified register for the polls, arguing that there was secret plot to rig ODM candidate Imran Okoth.
And a furious Owino could not spare chairman Wafula Chebukati, telling him off about previous misdeeds as the participants went silent.
In his speech, Owino threatened to mobilise supporters to eject Mr Chebukati from office over incompetence should the ODM candidate fail to score 70 per cent of votes.
"You know we've heard very bad history with IEBC especially with election of 2017 which the court admitted evidence. We have a bad blood with you because you're the referee. They took our house then, they now want to take our bed," he said.
"Opinion polls show that 70 per cent will vote for our candidate. Any deduction of that will force us to mobilise people to eject you from office. These people have been just campaigning in someone's house. We shall not joke with us this time."
Mr Okoth will be facing McDonald Mariga of Jubilee, Eliud Owalo of Amani National Congress and Eng Ramadhan Khamisi of Ford Kenya party among others.
ODM confirmed that it had reached a consensus with the electoral body, adding that an updated voter register would be availed next week.
“We had a fruitful meeting with the IEBC Chairman, Commissioners and Senior Officials. It was cordial and consultative.
"They agreed to provide the updated voter register for Kibra Constituency next week. They will also address other concerns we raised by our party,” ODM posted on their Twitter page.