“When Zuma was in the ANC, KwaZulu-Natal became the party’s largest and most influential province. It helped the ANC cross the 50% line in every national election since 2004,” he told the BBC.
At first, the ANC ignored the formation of the MK party but after Mr Zuma threw his weight behind it in December, the party launched legal action in the electoral court to deregister it and prevent it from running.
It also wants the High Court to bar it from using the name MK, arguing that the ANC has copyright over it.
The battle over the name is crucial, as MK refers to the now-defunct armed wing of the ANC that Nelson Mandela launched in 1961 to fight the racist system of apartheid.
So, it has deep political symbolism, with the ANC determined to prevent Mr Zuma – who joined the ANC’s armed struggle as a teenager – from claiming to be its heir.