The All Progressives Congress (APC) and the People’s Democratic Party (PDP) have formally approached the election tribunal to challenge the victory of Governor Ademola Adeleke in the 2026 Osun State governorship election.
The petitions seek to overturn the results of the polls held on 15 August 2026, which saw the Accord Party candidate declared the winner for a second term in office. The simultaneous legal actions by both the main opposition and the ruling federal party create a rare dual challenge to the sitting governor’s mandate.
The legal move places the legitimacy of the August election under intense judicial scrutiny, as the tribunal must now determine whether the declared results reflect the true will of the Osun electorate or if electoral irregularities occurred.
Legal challenge to Adeleke’s mandate
The petitions filed by the APC and the PDP target the outcome of the 15 August polls, which returned Mr Adeleke as governor. While the specific legal grounds and the exact nature of the alleged irregularities have not been fully detailed in the initial announcements, the filing of these petitions follows the standard procedure for contesting governorship results in Nigeria.
Governor Adeleke, running under the Accord Party, secured his second term following a highly competitive campaign period. The 2026 election cycle in Osun State has been characterised by tight margins and intense political maneuvering between the established parties and the Accord Party, which has gained significant ground in the state.
In Nigerian electoral law, the Election Petition Tribunal is tasked with investigating claims of non-compliance with the Electoral Act, illegal voting, or the non-performance of duties by the Independent National Electoral Commission (INEC). The tribunal has the power to uphold the election, nullify the result, or order a rerun in specific local government areas or the entire state.
The legal battle in Osun comes at a time when political tension in the South-West remains high, as parties vie for control of key state governments. The dual challenge by the APC and the PDP suggests that neither major party is willing to concede the state to the Accord Party without a full judicial review of the voting process.
The tribunal is expected to commence preliminary hearings to establish the admissibility of the petitions. The legal teams for the APC, the PDP, and Governor Adeleke are preparing to present evidence and arguments, a process that could span several months before a final judgment is delivered.
The outcome of these proceedings will dictate whether Governor Adeleke continues his second term or if the state will face a period of political uncertainty through a court-ordered rerun or the swearing-in of a different candidate.
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