All preparations have been finalised for the Senate to begin impeachment hearings against Nyamira County Governor Amos Kimwomi Nyaribo, with proceedings slated for Wednesday 3 and Thursday 4 December 2025. The plenary hearings, during which the full House will convene as a trial court are expected to be closely watched as Senators decide the Governor’s political future.

The process will formally open on Wednesday with the reading of charges levelled against Governor Nyaribo. He will then be required to enter a plea, either admitting or denying responsibility. Thereafter, the County Assembly which initiated the impeachment will present its case first, outlining evidence and arguments to support the Governor’s removal from office. The Assembly’s legal team is set to table documents and cross-examine witnesses to reinforce its claims.

Governor Nyaribo’s defence team will subsequently be granted an opportunity to respond. They are expected to challenge the allegations, call their own witnesses and subject them to cross-examination. Once both sides have presented their cases, the Senate will debate the Motion before taking a decisive vote on Thursday, 4 December 2025. A majority of county delegations will be required to either uphold or dismiss the charges.

By the letter Ref. SPK/CAN/1/2025, dated 25th, November, 2025 and received in the Office of the Speaker of the Senate on 26th November, 2025, the Speaker of the County Assembly of Nyamira informed the Speaker of the Senate of the approval of the Motion by the County Assembly and further forwarded to the Speaker of the Senate, documents in evidence of the proceedings of the Assembly.

Governor Nyaribo was impeached by the County Assembly of Nyamira on two grounds: gross violation of the Constitution and other laws and abuse of office.

Under the first charge, Governor Nyaribo is accused of engaging in, endorsing and supporting the unlawful and unconstitutional “Bunge Mashinani” initiative, giving illegal assent to the Nyamira County Supplementary Appropriation Bill, 2024 and making an unlawful appointment of Dr Peris Nyaboke Oroko, also known as Peris Mongare as a County Executive Committee Member.

It is further alleged that the Governor illegally appointed members of the Municipal Boards of Nyamira and Keroka, unlawfully constituted a Selection Panel for the County Public Service Board (CPSB) and failed to appoint the Chairperson, Secretary and Members of the CPSB.

The County Assembly also accused Nyaribo of failing to deliver the State of the County Address and Annual Reports, as well as failing to comply with court orders regarding the appointment of Mr Clive Ogwora to the County Executive Committee.

On the charge of abuse of office, the Nyamira County Assembly faulted the Governor for conducting staff recruitment without budgetary provision, influencing irregular appointments of senior human resource officials and enriching himself through irregular salary arrears.

Members of the County Assembly additionally cited a payroll fraud syndicate that resulted in the loss of public funds, the Governor’s involvement in dual appointments outside the lawful establishment and usurpation of the powers of the Auditor-General and the CPSB.

Governor Nyaribo is also accused of unlawfully suspending the Secretary of the CPSB.

Majority Leader Sen. Aaron Cheruiyot had initially moved a Motion to establish eleven members select committee to handle the proposed removal through impeachment but it collapsed after it failed to get a seconder paving way for the full plenary hearing.

The Speaker directed the Clerk of the Senate to issue Invitations to Appear to the parties on Thursday, 27th November 2025 and instructed the parties to file their responses with the Office of the Clerk of the Senate by Monday, 1st December 2025, at 5:00 p.m. The Clerk was further directed to circulate all documents received from the parties, including the Plenary Hearing Programme to all Senators by close of business this Tuesday, 2nd December 2025, at 5:00 p.m.