The Ol Kalou Constituency by-election on July 16, 2026, has become a critical battleground for political supremacy in the Mt Kenya region, testing alliances and future presidential ambitions.

• The contest is framed as a "referendum" on Mt Kenya's voting patterns for the 2027 general election.
• Key figures involved include Deputy President Kithure Kindiki (UDA), former Deputy President Rigathi Gachagua (DCP), and Jubilee Party leader Dr Fred Matiang’i.
• The seat became vacant following the death of sitting Jubilee Party MP David Kiaraho on March 29, 2026.