ZANU PF adopted the resolution at its annual conference, saying the extension is needed for political stability and economic progress.
The challenge was brought by Ibhetshu LikaZulu and its secretary-general, Mbuso Fuzwayo, who argue that any changes to Sections 95(2)(b) and 143(1) of the Constitution would require a national referendum.
They argue that ZANU PF’s resolution undermines public participation and breaches constitutional safeguards.
The Government and ZANU PF, named as respondents, argue that the application is premature because no formal amendment process has begun.
They say the resolution falls under Section 328(5) of the Constitution, which allows changes to presidential terms without a referendum, and that proper hearings and legislative scrutiny would still take place before any amendment is enacted.
The court will have to interpret Section 328, which governs amendments to presidential terms, to decide whether ZANU PF’s plan is constitutional.