President William Ruto's United Democratic Alliance (UDA) party faces a challenge to its recent by-election victory. Two voters have filed a petition contesting the win of Leo Wa Muthende in the Mbeere North by-elections, citing alleged irregularities and claiming he was not a registered voter.

• Wa Muthende secured 15,802 votes, defeating Newton Kariuki who garnered 15,308 votes.
• The petitioners allege Wa Muthende's name change from Leonard Muriuki Njeru was not updated on the Independent Electoral and Boundaries Commission (IEBC) register, rendering his win unlawful.
• The by-election was triggered by Geoffrey Ruku's appointment as Public Service Cabinet Secretary.

Human rights organizations, led by Vocal Africa, have issued a 14-day ultimatum to the Independent Electoral and Boundaries Commission (IEBC) and the Ethics and Anti-Corruption Commission (EACC) to address alleged widespread electoral offences during recent by-elections. They threaten legal action if no steps are taken to curb voter bribery, intimidation, and violence that reportedly occurred.

• Vocal Africa leader, Executive Director Khalid Hussein, accused the IEBC and EACC of inaction, stating the by-elections were neither free nor fair.
• The Election Observation Group (ELOG) also flagged breaches of electoral integrity in areas like Kasipul, Malava, Mbeere North, Nairobi, and Machakos.
• ELOG's national coordinator, Mule Musau, cited Section 9 of the Electoral Offences Act, which carries penalties of up to Sh2 million in fines or a six-year jail term for voter bribery.
• Obsevers documented public officials using state resources for campaigns and unauthorized individuals accessing polling stations, compromising ballot secrecy.

The United Democratic Alliance (UDA) party has announced that it will hold grassroots elections in 20 counties early next year, specifically on Saturday, January 10. This decision follows a joint meeting between the UDA Party's National Executive Committee (NEC) and the National Election Board (NEB), chaired by Deputy Party Leader Kithure Kindiki.

• These elections will take place in counties including Baringo, Bomet, Elgeiyo Marakwet, Kericho, and Nakuru.
• NEB Chairman Anthony Mwaura stated that aspirants can register through the party's portal between December 4 and December 23.
• The announcement comes after the UDA party secured 12 seats in recent by-elections conducted on November 27, 2025.

The United Democratic Alliance (UDA) has scheduled grassroots elections for January 10, 2026, in 20 counties, a decision made during a joint meeting of the party's National Executive Committee (NEC) and the National Elections Board (NEB).

• Registration for aspirants opens on December 4, 2025, and closes on December 23, 2025.
• The joint meeting that approved the roadmap was chaired by Deputy Party Leader Kithure Kindiki.
• The 20 counties include Baringo, Nakuru, Meru, and Kakamega, among others, as part of UDA's plan to strengthen internal democracy ahead of the 2027 General Election.