Renowned analyst Dr Alitulala Mukhwana has warned about the prospect of a constitutional crisis should Nairobi Governor Mike Mbuvi be asked to step aside.

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Speaking exclusively to KTN on Thursday, the learned counsel contended that a crisis would arise from the fact that Nairobi county does not have a deputy governor and a substantive speaker.

"But what is clear is that without a deputy governor in Nairobi, if honorable Sonko was to resign or step aside that would clearly cause a constitutional crisis," Mukhwana told KTN's Lindah Oguttu. 

The scholar said the constitution envisaged the deputy governor to take over in case the governor steps aside or resigns, and in the absence of the deputy governor, the speaker of the county assembly to assume the reins of power.

His words came after Sonko presented himself to the Ethics and Anti-Corruption Commission (EACC) offices to answer questions on the payment of per diems.

Nairobi Woman Representative Esther Passaris had invited the anti-corruption body and the Directorate of Criminal Investigations (DCI) to probe the governor's claims that she fraudulently sought to be paid per diem after receiving the payment from Parliament.

Sonko told the media that he was ready to step aside if found to have irregularly paid per diems.