Iyiola Omisore, a former Deputy Governor of Osun, has announced his defection from the Peoples Democratic Party, PDP, to Social Democratic Party, SDP.
Mr Omisore represents Osun East in the Senate.
The senator, who announced his defection in a statement made available to journalists in Osogbo on Sunday, said he intended to contest the September 22 governorship election on the platform of SDP.
He said his mission was to rescue the state from what he described as years of misrule.
According to him, the PDP in Osun is in disarray and likely to remain in prolonged political captivity over the next four years.
The statement reads partly, ”engaging and working with like-minded leadership, we have sought for an alternative platform that will assure both credible (sic) and legitimacy that will rescue Osun state from its current reckless misrule.
“Our quest for an alternative political platform is basically in pursuit of a credible political structure that would guarantee that our people enjoy the benefits of accountable leadership at the state level from now.
“Notwithstanding my enormous contributions over the past years or so to building the PDP, after very deep thought and the widest consultations with my God, my family, my supporters in and outside Osun state.
“It is with great concern that I have made a very expedient decision today, to withdraw my membership from the Peoples Democratic Party (PDP) and join the Social Democratic Party (SDP); a party that believed in a balanced, equitable and truly functional Nigeria.
“On the platform of the SDP, I shall with the support of my supporters, followers, and the electorate of the state, seek the nomination to contest for, and by His grace, be elected as the Executive Governor of Osun state on September 22, 2018”.
The News Agency of Nigeria reports that Mr Omisore was Osun Deputy Governor on the platform of Alliance for Democracy, AD, between 1999 and 2003.
He was also elected to the Senate on the platform of PDP in 2003 to represent Osun East Senatorial District, while he was in jail.