While launching his bid at Matiliku Township, Mr Muteti declared support for Mr Mwau saying he was the best suited senate aspirant to lead the County through the transition period.
He led the more than 500 community leaders in declaring support for the Kilome MP.
A number of aspirants for the governor seat have shown a soft spot for the Kilome MP with majority of them said to be eyeing his support, which would give them an edge in the contest.
Mr Mwau on his side has remained non-committal over the choice of his preferred candidates, choosing rather to campaign for his senate post.
He has also stayed clear of the presidential race, saying he is ready to work with any candidate democratically elected by the people.
His message to voters has been: “Do not be misled into voting the so-called six-piece packages designed by political parties. Vote individuals based on their capabilities and development record in past engagements.”
Observers say his current political wave has not come easy but through investment in the best political brokers and appropriate utilisation of CDF funds in his Kilome constituency.
One civic leader, Tom Mboya, had this to say about the Kilome MP; “Mwau is popular, has his own money, he has utilised CDF funds to the satisfaction of the people and he is also a man with power; when he says something no man can object.”
Although conspicuously absent from most public events, his swift tongued lieutenants are known to steal the show in those events when they take the podium to market him and his policies.
This has kept live his campaigns even in his absence on the ground.
Mr Mwau is battling for the senate seat with two other contestants,; Education minister Mutula Kilonzo and Agriculture assistant minister Gideon Ndambuki.
Mr Mutula and Mr Ndambuki are locked in a tussle for the Wiper party ticket nominations, with Ndambuki said to be approaching other parties to run on.
A source familiar with the assistant minister’s campaigns told the County Weekly that Mr Ndambuki was in talks with a number of parties among them TIP, TNA and DP for a possible defection from Wiper.
A senior TIP official confirmed Ndambuki had approached the party but declined to give any further details. Ndambuki could not be reached for comment.
Recently, the two shared a podium in Kaiti constituency, where they agreed to support whoever wins the nomination.
Analysts however say the two must be in the ballot and a pledge to support whoever wins the Wiper nomination was mere rhetoric.