The chairman of the Water Resources Authority Joe Mutambu has urged Deputy President Dr William Ruto to tender his resignation if he can't heed the president's call not to engage in politics.
Mr Mutambu said by moving around the country, drumming support for his presidential aspirations, the deputy president was acting in defiance of President Kenyatta's call on politicians to preoccupy themselves with development and not politics.
"If you want to move around the country engaging in politics, you should resign from the government so that you are free to roam (Ikiwa unataka kutangatanga, jiuzulu kwa serikali uende utangatange), " Mr Mutambu fired.
The deputy president continues to face criticism over his trips to various parts of the country that his detractors contend are political trips masked as development trips.
In a series of rejoinders, the DP has maintained that it is well within his responsibility as the president's principal assistant to traverse the country to monitor development projects.
He has clearly expressed his intentions to throw his hat in the 2022 presidential contest on a governing Jubilee party ticket.
His Tangatanga movement emerged after President Kenyatta said in a public rally that Ruto was the man to roam around the country monitoring government projects.
In a bid to bolster his prospects, he has been firing shots at veteran opposition and Orange Democratic Movement (ODM) leader Raila Odinga.