After 24 years of uninterrupted democracy since ending military dictatorship in 1999, Africa's most populous nation and largest economy is conducting its seventh election.
Muhammadu Buhari, Nigeria's president, speaks during the U.S.-Africa Business Forum in New York.
Leena Koni Hoffmann, associate fellow of the Africa Programme at Chatham House, told CNBC on Monday that the presidential election will be the "most unpredictable" since the transition to civilian rule.
Alongside the Covid-19 pandemic and war in Ukraine, Koni Hoffmann noted "missed opportunities" and "self-inflicted crises" under Buhari's regime.
Economists panned the decision, which Koni Hoffmann suggested rendered Nigeria and its neighbors more vulnerable to the damage of the pandemic.