Wiper leader Kalonzo Musyoka with Machakos Senator Johnstone Muthama.Photo/the-star.co.ke
Machakos Senator Johnston Muthama will not defend his seat during th August general election.
Muthama has annpounced that he will focus his energies on campaigning for NASA presidential aspirant Raila Odinga.
Muthama has cited massive irregularities and injustice in the party as one of the reasons he chose to quit.
"I regret the way Wiper is being micro-managed to the disadvantage of some party members. My decision was influenced by the way Wiper affairs are being conducted," he said.
Muthama said he will not campaign anywhere for Wiper.
"As I contemplate my next move, I assure there will be a bruising political battle in Ukambani and that the voice of the people will be heard," he said.
"I do not feel that I have the face, anymore, to campaign or face out supporters of Wiper all over because the party has betrayed the people's trust, just like it did in 2013, by [imposing] Governor Alfred Mutua on the people."
Wiper did not hold priomariers for the position and it was assumed that Muthama was given a direct ticket.