Cape Town - DA leader Mmusi Maimane delivered to Deputy President Cyril Ramaphosa's offices in Tuynhuys, Cape Town, a petition signed by one million South Africans calling for the removal of President Jacob Zuma.
Zuma faces yet another vote of no confidence on August 8 and Speaker Baleka Mbete has to decide if the vote will be by secret or open.
The delivery of the petition formed part of a push by the DA to influence public representatives from the ruling party to vote with their conscience.
This is despite the ANC having taken a firm resolution that its public representatives won't vote with the opposition to unseat their leader and that those who broke ranks would face the consequences.
Briefing the media earlier on Wednesday, Maimane said Ramaphosa has the power to convince ANC caucus to vote in favour of the motion of no confidence.
He said the signatures calling for Zuma to go were the will of the people and that Parliament should vote Zuma out.
"South Africans from all walks of life have stood up together and said look, we got to a point now where we must to ask Ramaphosa to do the right thing.
"Ramaphosa is leader of government business, he is the most senior person in government (and) he is an MP - which means he has a right to vote at this motion of no confidence," he said.
Maimane also took a swipe at Zuma, saying he no longer have interest of South Africa at heart.
"Zuma sold off our country to the Guptas, to other agents, and in fact, he has long forgotten why he was elected in the first place as the president of South Africa," he said.