JOHANNESBURG - Mathews Phosa is taking legal action to nullify the nominations process at the ANC Mpumalanga provincial general council.
Court papers were filed in the North Gauteng High Court on Thursday morning.
The court will hear the case next Tuesday.
Phosa, an ANC presidential hopeful, claims Premier David Mabuza has a personal militia.
EXCLUSIVE: Phosa makes shock allegation against Mabuza
He says the group disrupts branch general meetings that do not support Mabuza's initiative to elect a unity presidential candidate.
The Mpumalanga Provincial Executive Committee has rubbished Phosa's claims.
The ANC's much-anticipated national elective conference kicks off in just over a week's time on 16 December.