Former Nigerian President Olusegun Obasanjo says his biggest mistake during his time in office was selecting Atiku Abubakar as his running mate in the 1999 election. Both reports attribute the statement to Obasanjo, who describes the decision as his greatest error of the period. The accounts are consistent that the reference is specifically to the vice-presidential choice made by Obasanjo in 1999 and that Obasanjo continues to frame it as a mistake in hindsight. Neither source provides additional detail on the reasons behind his assessment, nor do they include responses from Atiku Abubakar or other political figures in reaction to the claim. The reports present the remarks as a personal reflection by Obasanjo rather than as a new policy or court action. Overall, the coverage focuses on Obasanjo’s assertion that his selection of Atiku as vice president stands out as the most significant mistake he made while in office.