Nigeria's presidential election tribunal on Wednesday rejected challenges by opposition rivals to Bola Tinubu's win in February's disputed vote. No legal challenge to the outcome of a presidential election has succeeded in Nigeria, which returned to democracy in 1999 after three decades of almost uninterrupted military rule. The five-judge panel also imposed hefty fines on the opposition petitioners for filing "frivolous petitions." For a legal analysis into the decision, VOA’s Esther Githui-Ewart spoke to Paul Ejime, a Nigerian global affairs analyst.