Mutula Kilonzo Junior is the current Senator for Makueni County and an advocate of the High court of Kenya.
He was elected as the second Senator of Makueni County on the WDM-K ticket in a by-election in July 2013, after the demise of his father Mutula Kilonzo, and is currently serving his second term since his election in August 2017.
Makueni Senator Mutula Kilonzo Jnr has on several occasions publicly criticized the government. During a Senate session in May 2020, he faulted the government over demolitions in Kariobangi North, Nairobi which had left thousands homeless.
He stated that the government had committed an international crime and violated human rights with the evictions, calling for the Senate to quickly take action to help the affected families.
Mutula was also vocal during the debate on the County Revenue Allocation Formula where he made a passionate submission while supporting a motion to adjourn the Senate special sitting on revenue allocation until three senators who had been arrested were released.
Mutula is also a Certified Public Secretary and an Associate of the Chartered Institute of Arbitrators (Kenya Branch). During his time in the Senate, Mutula has sponsored 1 bill, the Government Proceedings (Amendment) Bill, 2014.
In November 2020, Kilonzo Junior was named the best-performing Senator by Infotrak.
The survey which also ranked county assemblies named Makueni as the best performing counties.
His position as the Senate's Chief Minority Whip however hangs in the balance after reports insinuated that the Orange Democratic Movement (ODM) is planning to crack the whip on National Super Alliance (NASA) members who broke away to form a new coalition.
The senator, a close ally of former Vice President Kalonzo Musyoka, is the vice-chair of the Wiper Party, which recently showed allegiance to a new political formation, The One Kenya Alliance.