Cord leader Raila Odinga has asked the President to explain his role in fixing the DP at the ICC, claiming an MP acted for him when he allegedly procured false witnesses.
Raila said Gatundu South MP Moses Kuria worked at the UK Centre, Baden Powell House as President Uhuru Kenyatta's political assistant up to 2014.
"Moses Kuria was an employee and a political assistant to Uhuru when he arranged the procuring of witnesses to fix Ruto. Kuria worked for Uhuru Kenyatta from 2008," he claimed.
"This is the period when, by Kuria’s own admission, witnesses were being procured against Ruto," he added in a statement to newsrooms on Tuesday.
The Opposition leader said Uhuru and the Jubilee administration cannot claim to be unaware of what "his own employee" was doing.
"The work Kuria did during the course of his employment must be presumed to have been done for and on behalf of his Principal, Uhuru Kenyatta," he said.
Raila further said other "machinations disguised as prayers and attempts to drag other people’s names into the witness procuring scheme only known to Kuria" are meant to lull the DP's supporters."
"We find it rather awkward and hypocritical for some people to allege that the ODM leadership 'fixed' our comrade Ruto, who was at the centre of our negotiations," he said.
He said "facts" presented make claims by Jubilee a most "preposterous proposal and one of the biggest lies ever peddled in our country".
Kuria sensationally claimed Raila, Kisumu Senator Anyang' Nyong’o and Narc Kenya leader Martha Karua were involved in ensuring Ruto’s case went to full trial.
Tobiko ordered police to question the four over the allegations but Raila refused to record a statement saying he would not "indulge the idle curiosity of investigative agencies". Karua and Nyong'o are yet to record theirs.
On Monday, Kuria agreed to be the defence witness for Ruto at the ICC, following a request by the defence team.
In an email that Kuria received on Friday, Ruto's lawyer Shyamala Alagendra said they want to enlist him as a witness over his remarks.