Former Senate President David Mark has formally resigned from the Peoples Democratic Party (PDP), ending a 26-year association with the party he helped found in 1998.
In a resignation letter dated June 27 and addressed to his ward chairman in Otukpo, Benue State, Mark cited deepening internal divisions, unresolved leadership crises, and irreconcilable differences as reasons for his exit. He said the PDP had become a shadow of its former self and was now a source of public embarrassment.

Mark, who served as Senate President from 2007 to 2015 and was a five-term senator representing Benue South, said he had remained loyal to the PDP even after many left following the party’s 2015 defeat. He said he worked tirelessly to help rebuild and reposition the party.
ALSO READ: Opposition Coalition Adopts ADC as Platform, Names David Mark Chairman, Aregbesola Secretary
However, recent events had, according to him, made it impossible to remain. “After wide consultations with family, friends, and political associates, I have resolved to join the National Coalition of Political Opposition Movement in Nigeria,” Mark said, describing it as a new platform to help “rescue the nation and preserve democracy.”
Mark’s defection marks his first departure from the PDP since its founding.

His resignation follows a meeting of prominent PDP leaders including Atiku Abubakar, Sule Lamido, Aminu Tambuwal, Liyel Imoke, and Babangida Aliyu who have called for a united front to unseat President Bola Tinubu in the 2027 elections. The group urged Nigerians to join a broad coalition focused on national unity, security, and economic recovery.
