Professor Jerry Gana Left PDP: At What Point Did He Leave?

Prof. Jerry Gana.
Professor Jerry Gana is one Minister of Information that came behind Professor Walter Ofonagoro in term of performance and carriage as a minister.

A founding member of the People's Democratic Party, PDP who was one of those who benefited immensely from the government of former president, Olusegun Obasanjo and just yesterday, I heard he had contested for the presidential primaries on the platform of the Social Democratic Party, SDP with former governor of Cross Rivers State, Mr. Donald Duke and I wondered when Prof. Jerry Gana left the PDP for the SDP and what may have necessitated this movement?

At the presidential primaries of the SDP, Professor Gana polled 611 votes to come behind Donald Duke with 812 votes to emerge presidential candidate for the SDP.

What is Professor Jerry Gana still looking for in Nigeria that he doesnt have?