Newton Kariuki, the Democratic Party Candidate, is appealing to the Court of Appeal to overturn the election win of UDA's Leo Wa Muthende in the Mbeere North Parliamentary by-election.

• The High Court of Kenya at Embu dismissed Kariuki's petition based on insufficient proof that cited irregularities substantially affected the election outcome.
• Key individuals involved include Newton Kariuki and Leo Wa Muthende, with Justice Richard Mwongo presiding over the initial High Court judgment on May 21, 2026.
• Despite dismissing the petition, the High Court flagged several electoral malpractices, including unlawful alteration of the voters' register and improper handling of assisted voters, for referral to the Director of Public Prosecutions (DPP).