In a judgment delivered on Friday, a three-member panel of the appellate court held that the NNPP breached the constitution by sponsoring Yusuf who was not a member of the party.
The lower court had declared 165,663 votes of Yusuf, who contested under the New Nigerian Peoples Party (NNPP), invalid on the grounds that they were not signed or stamped by the Independent National Electoral Commission (INEC).