The earlier revelation sparked demonstrations in Jubilee strongholds, calling for the sacking of the judges.
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On Tuesday, the Standard newspaper published a story implicating Orengo, Moses Wetangula, former Attorney General and Busia Senator Amos Wako to have met with two Supreme Court judges just before the historic ruling which annulled President Uhuru Kenyatta’s win.
The story has sparked pockets of demonstrations in Jubilee Party perceived strongholds.
"I would not recognise Justice Mwilu if I met her in the streets without her robes," Mr Orengo told the press in Naivasha where Senators are meeting.
Mr Orengo, who is said to have met Deputy Chief Justice Philomena Mwilu and Justice Isaac Lenaola, accused unnamed individuals of plotting to tarnish his name.
The Siaya senator has termed the claims scandalous.
"I have never approached a judge in court or in their chambers to seek favours. Thus, the petition against the judges over these claims should be treated with the contempt it deserves,” he said.
He said the only judges he knew personally were Njoki Ndung'u, Jackton Ojwang and Mohammed Ibrahim, who he met either in school or in the course of their work.