Ngakaetsile took the BCP to court after he was locked out of the primary elections. He lost last week leaving Nzwaligwa as the party candidate.
A bitter Ngakaetsile has vowed to thwart Nzwaligwa's campaign as a way of getting back at the party.
"Completely (sic), I can't support him (Nzwaligwa). I am going to fight by all means to ensure that he doesn't win. I am not afraid of being expelled. What the party did is undemocratic," Ngakaetsile fumed.