Buhari appoints prof mahmud yakubu as substantive inec chair

That's correct! On November 9, 2015, President Muhammadu Buhari appointed Professor Mahmood Yakubu as the Chairman of the Independent National Electoral Commission (INEC). At the time, Yakubu was the Acting Chairman of INEC, having taken over the position after the resignation of Attahiru Jega in May 2015.

As the substantive Chairman of INEC, Professor Yakubu has been instrumental in overseeing several elections in Nigeria, including the 2019 general elections. He has also been involved in various electoral reforms and has worked to improve the efficiency and transparency of the electoral process in Nigeria.

It's worth noting that Professor Yakubu's appointment as INEC Chairman was initially for a five-year term, which expired in 2020. However, he was reappointed for another five-year term in 2020, following his confirmation by the Senate.