Federal investigators linked top officials from Ghana and Nigeria to a 2005 FBI corruption probe involving U.S. Congressman William Jefferson. The investigation, which focused on bribery and money laundering, revealed connections between Ghanaian and Nigerian officials and Jefferson’s associates. The case highlighted cross-border corruption and prompted international scrutiny. The probe, which began in 2005, led to charges against several officials, though outcomes varied. The scandal underscored challenges in combating graft across African nations. The FBI’s efforts to trace illicit financial flows remain relevant in ongoing anti-corruption campaigns.