Tension was high at the Nandi-Hills UDA primaries tallying centre after Nyeri woman representative Rahab Mukami was chased away by youths who accused her of leading a scheme to rig out incumbent MP Alfred Keter.
Mukami is a UDA party “Observer” in the primaries.
Keter supporters claim she is leading a “high powered team” out to ensure MP Keter does not clinch the UDA ticket.
Security was heightened at Samoei high school, the UDA tallying centre, where it was alleged that a team had been dispatched to ensure Keter's rival wins the seat.
Reports emerged that in Keter’s strongholds, ballot papers were missing while in other areas, ballot papers were few forcing the voters to refuse to vote.
They returned to vote after they were implored by the MP to cast their votes.
Keter, the incumbent MP, faces one of the toughest tests yet in his political career as he is being perceived as a pariah in the UDA camp by close allies of deputy president William Ruto.
The nominations were postponed following the death of UDA aspirant Wesley Kogo in a road accident in Kangemi, Nairobi, has attracted seven contestants seeking the ticket.
Aspirants running against Keter include Benard Kitur, George Tarus, Robert Chepkwony, Lilian Lelei, Irine Chemutai and Abraham Limo.
DP allies have been rooting for a single candidate to face Keter, who is said to be popular among the electorates.
Kapseret MP Oscar Sudi, Caleb Kositany (Soy), and Didmus Baraza (Kimilili) among others had during the burial of the late Kogo on Saturday asked Nandi hills constituents not to re-elect Keter.
The Director of Communications in the Office of Deputy President Emmanuel Talam also asked residents to vote out Keter.
Kitur, who is a village mate of MP Keter in the Mogoon neighbourhood, was reported to be Ruto allies' favourite.
Nandi-Hills constituency has 100 polling centres.
