The Independent Electoral and Boundaries Commission has declared Sammy Douglas Kamau Waweru of the Democracy for the Citizens Party the winner of the Ol Kalou by-election after he secured 35,440 votes.
Returning Officer Antony Njiraine announced the results on Friday, July 17, 2026, at dawn after overnight vote tallying. His main opponent Samuel Muchina Nyagah of the United Democratic Alliance received 5,450 votes.
The by-election took place on Thursday, July 16, 2026, and was disrupted by violence and threats at several polling stations. Mr Waweru condemned the clashes and said they caused the death of one of his supporters.
Nyandarua Senator John Methu claimed the attackers were police officers and called on the Inspector General of Police to take action. IEBC Commissioner Hassan Noor promised to improve the 2027 general election based on lessons learned.