Atiku stands on buhari new term in office

I think there may be some confusion here.

Atiku Abubakar is a Nigerian politician who has been a presidential candidate in several elections, including the 2019 presidential election. Muhammadu Buhari is the current President of Nigeria, who was first elected in 2015 and re-elected in 2019.

It's not possible for Atiku to "stand on" Buhari's new term in office, as Buhari has already completed his second term as President and is no longer in office. Additionally, Atiku has not been elected as President and is not currently holding any executive office.

If you meant to ask something else, please feel free to rephrase your question!