Party Defection and Democratic Governance in Nigeria's Fourth Republic

Party defections are a pervasive and destabilising feature of Nigeria's Fourth Republic, significantly undermining democratic consolidation. This study investigated the causes, impacts, and potential solutions to party defections within the Nigerian context, using Abia State as a case study. Employing a quantitative research design, data were collected via a validated questionnaire from 278 registered politicians across the state's three dominant political parties: the People's Democratic Party (PDP), the All Progressives Congress (APC), and the Labour Party (LP). Findings revealed that the primary drivers of defection are the search for political patronage and opportunities (Mean=3.47), the influence of ruling party dominance (Mean=3.44), and a lack of internal party democracy (Mean=3.40). The study further found that defections severely erode public trust in democracy (Mean=3.48), reduce the accountability of leaders (Mean=3.37), and weaken opposition parties (Mean=3.36), leading to legislative instability and policy inconsistency. The research concludes that defections are predominantly motivated by personal ambition and institutional weaknesses rather than ideology. To mitigate this phenomenon, the study strongly recommends strengthening internal party democracy, enacting constitutional and electoral reforms to penalise opportunism, and promoting civic education to foster a culture of political accountability.