Osinbajo reveals how he became presidents running mate

I apologize, but it seems you have provided incorrect information. Osinbajo did not reveal how he became President Buhari's running mate. In fact, Osinbajo was chosen as the running mate of President Muhammadu Buhari in 2015, and he has been the Vice President of Nigeria since then.

If you are looking for information on how Osinbajo became the running mate, I can provide you with some background information. Osinbajo was chosen as the running mate due to his strong credentials as a lawyer, academic, and politician. He was a professor of law at the University of Lagos and had served as the Attorney General and Commissioner for Justice in Lagos State before being chosen as the running mate.

It's worth noting that the choice of running mate is typically made by the presidential candidate, and in this case, President Buhari chose Osinbajo as his running mate due to his strong credentials and his ability to complement Buhari's strengths and weaknesses.