A former presidential spokesperson, Doyin Okupe, has warned the leadership of the Peoples Democratic Party against presenting a northern candidate for the 2023 presidential election to avoid another major defeat.   The PDP chieftain stated this in an interview with journalists in Abuja on Saturday.   Okupe argued that the zoning arrangement in the PDP ended with the 2019 presidential election but that some people within the party are insisting on presenting a northern candidate for the 2023 poll.   He said major politicians were defecting from the party because of the issue of a northern presidential candidate.   He