The Opposition senators staged a walkout from the Senate chambers ahead of a question and answer session with Trade CS Moses Kuria.
Kuria is among other Cabinet Secretaries who are expected to appear before the senators on Wednesday.
However, before the session, Azimio la Umoja Coalition Senators raised concerns over the CS's appearance in the chambers.
Nairobi Senator Edwin Sifuna had raised concern that CS Kuria would use the session to sanitize himself since he knows there is a censure motion against him.
However, Senate Speaker Amason Kingi ruled that the former Gatundu South MP could appear as the censure motion has not been officially tabled.
"We are anticipating debate contrary to Standing Order 99, therefore I allow CS Moses Kuria to proceed with answering the questions," he said.
On Tuesday, Nairobi Senator Edwin Sifuna formally filed a censure motion to have the senators discuss the unbecoming behaviour of the CS.
Censure is a procedure by which Parliament can rebuke the actions or conduct of an individual.
A censure motion expresses disapproval or reprimand at particular actions or policies of the government and even an individual minister.
Sifuna said media freedom in the country is under threat if the remarks by Kuria is left unchallenged.
The Nairobi Senator wants Kuria reprimanded insisting his conduct indignities the office of the Cabinet Secretary.
