- He garnered 147,921 votes against Mr Karaba's 130,925 votes.
- He promised to keep governors on toes to ensure they deliver.
Businessman Charles Kibiru is set to be the only independent senator after Kirinyaga voters chose him over Jubilee candidate.
It is also the first time voters in the county defied the six-piece voting call since the introduction of multi-party in 1992.
Mr Kibiru, a newcomer in politics, was declared the winner after trouncing three of his opponents among them, the incumbent Daniel Karaba of Jubilee.
He garnered 147,921 votes against Mr Karaba's 130,925 votes.
Narc Kenya candidate Dishon Kirima got 9,897 votes while Mr James Karimi who was also vying as an independent candidate, managed to get, 11,987 votes.
Mr Kibiru had participated in the Jubilee nominations but he lost to Mr Karaba with a narrow margin.
County Returning Officer Samuel Seki presented a certificate to Mr Kibiru shortly after 1am Friday.