Nyamira Governor Amos Nyaribo pleaded not guilty to impeachment charges as his hearing commenced in the Senate on December 3, 2025. This marks his third impeachment attempt, with disputes arising over the validity of the County Assembly's voting threshold for the motion.

• Governor Amos Nyaribo faces allegations of gross violation of the Constitution and abuse of office.
• The MCAs cited his endorsement of Bunge Mashinani sittings, support for Speaker Enock Okero, and unilateral decisions including assenting to the Supplementary Appropriations Bill 2024.
• Further accusations include failing to deliver the State of the County Address for two years, authorizing a Sh5 million salary arrears payment to himself, and recruiting 358 staff at an annual cost of Sh325 million despite advice against it.
• Lawyers debated whether the County Assembly met the required 24 votes for impeachment, with Nyaribo’s lawyer arguing only 23 votes were cast, while the prosecution claimed 22 votes were sufficient due to three vacant seats.
• The Senate will determine whether to proceed with the hearings, opting to resolve the matter in plenary rather than through a special committee.