2023 Nigerian Senate elections in Edo State

On the primary date, Monday Okpebholo was the sole candidate and was nominated unopposed.[16]

In the year before the primaries, the Edo State PDP split between two factions: one group led by incumbent Governor Godwin Obaseki and his allies who joined the PDP with him in 2020 with a rival bloc led by the national PDP South-South Deputy National Vice-Chairman Dan Orbih and longtime party members. The dispute escalated in late 2021 when the Obaseki-aligned state PDP leadership attempted to suspend Orbih's membership and the two factions held separate party congresses.[23] Despite a court order that recognised the Orbih faction a few days before the primary date, both factions held separate primaries with longtime party members mainly winning the Orbih factional primaries and recent defectors mainly winning the Obaseki factional primaries.[24][25]

In the Orbih-aligned factional primary, former Minister of Works Mike Onolememen emerged victorious over former MHR Friday Obomezele Itulah by a large margin.[26] In the Obaseki-aligned factional primary, Ordia also defeated Itulah in a landslide.[26] In INEC's final list of nominees in September, the Orbih faction's nominees were recognized due to the previous court order;[27] however, Federal High Court promptly ordered the recognition of the Obaseki faction's nominees before the Supreme Court dismissed an appeal by Orbih’s faction.[28][29] However, it was not until 2 February 2023 that the apex court definitively ruled on the matter, again siding with the Obaseki faction.[30]

By the start of the official campaign period in October, Okpebholo supporters began to use the PDP crisis to campaign with claims that the ongoing litigation could deprive the district of representation if the PDP won the seat but litigation continued.[31]

About two months before the primary date, Alimikhena declared for re-election but former Edo State Governor and former APC National Chairman Adams Oshiomhole also announced that he would run for the seat;[32][33] however, Oshiomhole also declared his campaign for president around the same time.[34] Despite calls from pro-Alimikhena groups for Oshiomhole to continue his presidential campaign, he dropped the presidential campaign in mid-May causing Alimikhena to withdraw from the senatorial primary and leave the APC.[35][36][37] At the primary in Auchi, Oshiomhole won easily and said afterwards that he "will ensure that the voice of Edo North will be loud and clear" in the Senate and called on Alimikhena to accept the primary.[38][39]

In the Orbih-aligned factional primary, Pascal Ugbome—a former member of the Edo State House of Assembly—defeated runner-up Tony Ezekiel by a 47% margin.[26] In the original Obaseki-aligned factional primary, Victoria Edelokun defeated Ugbome by an even greater margin but she withdrew from the nomination a few days later.[26] The Obaseki factional PDP leadership called a new primary for 4 June in Auchi which the newly defected Alimikhena won by a 94% margin.[45][46] Afterwards, Ugbome protested to the media and repeated his claim to be the legitimate PDP nominee.[46] In INEC's final list of nominees in September, the Orbih faction's nominees were recognized due to the previous court order;[27] however, Federal High Court promptly ordered the recognition of the Obaseki faction's nominees before the Supreme Court dismissed an appeal by Orbih’s faction.[28][29] However, it was not until 2 February 2023 that the apex court definitivelu ruled on the matter, again siding with the Obaseki faction.[30]

In a January 2023 campaign analysis piece, reporters from The Punch labeled Oshiomhole as the frontrunner due to his longtime electoral influence in the region. However, the report also noted Alimikhena's incumbency advantage along with how the rise of Peter Obi's presidential candidacy could boost Anselm Eragbe—the LP senatorial nominee.[47] In the week before the election, the Daily Post noted that despite Oshiomhole and APC strength in the district, both the LP and PDP were genuine electoral threats (especially amid the naira scarcity crisis).[48]

The primary, which was held in a sports hall at the University of Benin in Benin City, resulted in Valentine Asuen's nomination. Asuen—a businessman, former APC official, and Oredo local government councilor—defeated former Deputy Governor Lucky Imasuen.

In the Orbih-aligned factional primary, Omoregie Ogbeide-Ihama—member of the House of Representatives for Oredo—was nominated unanimously but the primary was marred by three events: the shooting of a Orbih-aligned PDP ward chairman, an attack on the primary venue by allegedly Obaseki-supporting thugs, and the arrest of four journalists by police for covering an "illegal" primary.[26][51] In the Obaseki-aligned factional primary at the Samuel Ogbemudia Stadium, incumbent Urhoghide was defeated by Matthew Iduoriyekemwen—former member of the Edo State House of Assembly—in a narrow race;[26] Urhoghide promptly walked out of the venue.[52] In INEC's final list of nominees in September, the Orbih faction's nominees were recognized due to the previous court order;[27] however, Federal High Court promptly ordered the recognition of the Obaseki faction's nominees before the Supreme Court dismissed an appeal by Orbih’s faction.[28][29] However, it was not until 2 February 2023 that the apex court definitivelu ruled on the matter, again siding with the Obaseki faction.[30]