South Africa: Parliament to debate president's impeachment motion on Tuesday
South Africa's constitutional court ruled on Thursday that Zuma had failed to uphold the constitution by ignoring orders from the public protector that he repay some of the $16 million in state funds spent to renovate his private residence at Nkandla.
Since Thursday's ruling, opposition party leaders, ordinary South Africans and even an anti-apartheid activist jailed alongside Nelson Mandela have called on Zuma to step down.
Mmusi Maimane, leader of the opposition party Democratic Alliance (DA), tabled the motion to have Zuma impeached, and Mbete told reporters on Sunday "the debate on that motion has been scheduled for Tuesday afternoon."
The Africa National Congress majority in parliament will almost certainly give Zuma political cover against the attempt to impeach him. But the judicial rebuke may embolden anti-Zuma factions within the ruling party to mount a challenge.
The unanimous ruling by the 11-judge constitutional court also criticised parliament for passing a resolution that purported to nullify Public Protector Thuli Madonsela's findings on the state spending on Zuma's private residence.
DA Parliamentary Chief Whip John Steenhuisen said on Sunday that Mbete should also resign for her and parliament's complicity in the Nkandla matter.
Mbete said she would not step down, but acknowledged the issue could have been handled differently in parliament.
The scandal is arguably the biggest yet to hit Zuma, who has fended off accusations of corruption, influence peddling and rape since before he took office in 2009.
On Friday, the 73-year-old president gave a televised address to the nation in which he apologised and said he would pay back some of the money, as ordered. He said that he never knowingly or deliberately set out to violate the constitution.
The president travelled to his home province of Kwazulu-Natal on Sunday to launch a relief programme as part of government efforts to support areas affected by South Africa's worst drought in more than a century.
He told a cheering crowd that he was still South Africa's leader and joked about how youthful he was, but made no specific mention of the Nkandla matter, the pending impeachment motion or calls for him to step down as he addressed the gathering in Zulu, his native language.