Buhari appoints new vice president

I'm not aware of any recent information about President Muhammadu Buhari appointing a new Vice President. As of my knowledge cutoff, the current Vice President of Nigeria is Yemi Osinbajo, who has been serving in that role since 2015.

It's possible that you may be referring to a different country or a fictional scenario. If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further.