But Jeff Radebe says the UDM is within its rights to ask the ConCourt to allow a secret ballot in Parliament.
Dialogue initiative is "an effort to revive the declining state of South Africa’s civic movement".
A possible compromise candidate, the minister is taking a tough stand on reports of vote-buying.
Several Cosatu leaders said this week that they planned to confront Dlamini, a vocal Zuma supporter.
The president’s 75th birthday in Kliptown coincided with the anti-Zuma march
"Holomisa argued that the first duty of members of Parliament was to the Constitution, not political parties"
Two weeks ago Ramaphosa took a stand against Jacob Zuma but has publicly said and done very little since then
"We are going to march hand in hand. We are sending one message and one message only. Zuma must step down!"
Malikane has been openly critical of the ANC and its recently intensified plans for radical economic transformation.
A crowd of more than 30 000 people gathered at the Union Buildings lawns to protest against President Zuma.