N'afọ 2002, Okadigbo gawa otu All Nigeria's People's Party, ebe ọ pụtara n'ọsọ ntuliaka afọ 2003 dịka osote onyeisiala n'okpuru Muhammadu Buhari mana Olusegun Obasanjo na Atiku Abubakar bụkwa onye na-azọ ọkwa ahụ nke ugboro abụọ meriri ntuliaka ahụ.
