State House has refuted reports that it is sponsoring candidates for president or various political parties.
It termed the reports attributed to Lugari MP Cyrus Jirongo as "careless and irresponsible".
"We will not give any credence to the allegations from a political activist whose political and business history is very well known to the Kenyan public," said the terse statement Tuesday.
"As a presidential candidate who seeks to occupy State House he should be telling Kenyans what he will do to transform their lives not yapping State House, State House every time he opens his mouth."
Mr Jirongo has claimed that influential people at State House were bankrolling some political parties including the United Democratic Forum (UDF) of Deputy Prime Minister Musalia Mudavadi and Eldoret North MP William Ruto's United Republican Party (URP).
Speaking at a rally in Busia on Saturday, Mr Jirongo accused Mr Mudavadi and Mr Ruto of running “government projects” as parties.
He added that he had left the URP and would be unveiling his party in two weeks’ time.
Mr Jirongo added that URP, on whose ticked he had declared his presidential ambition, was being sponsored by forces close to State House who would not let him vie.
“I cannot be a part of parties and individuals whose drive for the presidency is motivated by the amount of money they get so that they serve the interests of those who bankroll them,” he said.
At the same time, President Kibaki's private secretary Nick Wanjohi has denied being a member of a political party.
"As a serving member of the civil service, I remain apolitical. I am currently fully engaged in serving His Excellency and I am not a member of any political party," said Mr Wanjohi.
He has been linked to the UDF.
"Media should desist from making these deliberate and constant references associating me with political parties." he said.