Edo voted off-cycle after a court installed Adams Oshiomhole in 2008. Since then a sitting governor has been denied his party's ticket, won anyway on another, and the APC has taken the state back. Every result since 1999.
The PDP won every Delta governorship election from 1999 to 2023, though one was annulled and the opposition came within 92,000 votes in 2011. In April 2025 the governor and his predecessor took the state into the APC.
Cross River elected PDP governors for 24 years, often with huge margins, then followed Governor Ben Ayade into the APC. Every governorship result since 1999, including the 2008 rerun, and the 2027 race.
Bayelsa produced a President, lost a governor to a money-laundering scandal, had a 2007 result annulled, and in 2020 saw the Supreme Court remove its governor-elect a day before his swearing-in. Every result since 1999.
The PDP won every Akwa Ibom governorship election from 1999 to 2023, several with more than a million votes. In 2025 Governor Umo Eno took the state into the APC. Every result since 1999 and the 2027 field.
