Nandi Hills MP Alfred Keter has dedicated Imran Okoth's victory to the people of Kibra constituency following Thursday's by-election.
Kibra people elected Imran Okoth, a brother to the late MP Ken Okoth on Thursday on ODM ticket having scored over 24,000 votes.
And Mr Keter, a fierce critic of Deputy President William Ruto, termed the victory as a win against 'cartels', even though he never mentioned their names.
In a previous message, Mr Keter, who is serving his second term, accused Deputy President William Ruto of 'forcing' Jubilee MPs to support McDonald Mariga who emerged second.
"Thank you so much Kibra people for telling off the cartels. I believed in you and of course, it has come to pass," said Mr Keter, a rebel Jubilee party MP.
The Kibra by-election contest had been reduced to 2022 projected battle between Deputy President William Ruto and opposition leader Raila Odinga.
Mr Mariga conceded defeat even before the official declaration Imran Okoth as the Kibra by-election winner on Thursday.
"After the election, we should go back to our past life and strengthen our friendship. I will offer you maximum support," Mariga said.
Imran acknowledged his congratulatory message in a tweet saying, "I'm humbled to have received a congratulatory call from @MarigaOfficial. That’s the spirit of politics. I promise to move forward with every interested party for the good of our people. God bless Kibra."
While Dr Ruto has declared for 2022 contest, Mr Odinga has remained silent, only pleading support to Handshake between him and President Uhuru Kenyatta.