Nigeria's Labour Party's candidate Peter Obi sits in line with his wife Margaret Obi, left, as he waits to cast his vote during the presidential elections in Agulu, Nigeria, Saturday, Feb. 25, 2023. [AP Photo]
A Nigerian opposition party has filed a petition with the Court of Appeal against the ruling party for its candidate's victory in last month's presidential election, according to court documents seen by The Associated Press on Tuesday.