[Vanguard] As the defection from Delta State, one of the traditional strongholds of Peoples Democratic Party, PDP, continues to stir debates in the polity, President Bola Tinubu, yesterday, said a political tsunami which saw Governor Sheriff Oborevwori, his predecessor, Senator Ifeanyi Okowa, and the PDP structure defect to the All Progressives Congress, APC, has never happened in the country.