The Party's Secretary-General Nick Salat will confirming Moi's candidature said the independence party submitted senator's name to the Independent Electoral and Boundaries Commission (IEBC) to seek a third term in the Senate.
The Baringo senator, who backs Azimio la Umoja One Kenya presidential flag bearer Raila Odinga has however in the past occasions shied away from declaring his bid or launching his campaigns.
Senator Moi's entry into the race means he will face off with Dr Ruto’s United Democratic Alliance (UDA) candidate and Baringo North MP Mr William Cheptumo, for the seat.