The seat fell vacant after MCA Elisha Oraro resigned following his unanimous election as Kisumu County Assembly Speaker on January 24.
The five people battling for the ODM ticket are Thomas Kotieno, Ramadhan Bilali, Samuel Dede, former MCA Caroline Owen and former councilor Bernard Muga Obewa.
Confusion marred ODM’s Kisumu North primaries on Saturday after the returning officer went missing and could not be reached on phone.
Hours later, National Elections Board chairperson Catherine Mumma said the officer was found safe in a hotel, preparing for the exercise.