Tony Leon is part of a delegation of senior party figures led by Ryan Coetzee to ask the embattled leader Mmusi Maimane to quit in the interests of the party.
Maimane has been under fire for allegedly accepting payments from Steinhoff and allowing corrupt business figures to fund his lifestyle.
However He was recently cleared by the party following an internal investigation that his car was paid for by controversial Steinhoff former chief executive officer Markus Jooste and declaring a R4m Claremont home as his own.
Meanwhile earlier on Friday, Helen Zille confirmed via a statement posted on Facebook that she would be running for the position of DA federal chairperson. She also confirmed she had suspended her role at the IRR.
Zille's tweets led her to being suspended from holding leadership roles in party structures, but allowed her to stay on as Premier until she announced her retirement from public office at the end of the last administration.
Several DA leaders have claimed that a right-wing element in the party had orchestrated a smear campaign against the embattled leader.