Journal of Historical Research, Law and Policy 3115-7505 In Press 2027 08 01 Political Party Institutionalization and State-Building in Post-2003 Iraq Political Party Institutionalization and State-Building in Post-2003 Iraq 1 28 EN Journal Article 2026 07 13 <p>The transformation of Iraq’s political system after 2003 created a pluralist environment in which numerous political parties entered electoral competition and became central actors in government formation, parliamentary representation, and the distribution of political power. Despite this expansion of partisan activity, the development of a stable and institutionalized party system has remained incomplete, while the process of state-building has continued to face serious structural constraints. This study examines the relationship between the institutionalization of political parties and state-building in Iraq from 2003 to 2025, with particular attention to the role of the muhasasa system as an intervening mechanism. The study adopts a qualitative documentary and historical-analytical approach and examines the evolution of the Iraqi party system across three periods: the formation of the post-Ba'ath multiparty order from 2003 to 2010, the consolidation of quota-based governance and intensified institutional fragmentation from 2010 to 2017, and the period of electoral reform, social protest, and declining party legitimacy from 2017 to 2025. The findings indicate that the numerical growth and organizational durability of political parties did not necessarily produce substantive party institutionalization. Many political organizations remained dependent on ethnosectarian mobilization, patronage networks, access to public institutions, and negotiated distributions of state resources. These patterns weakened bureaucratic autonomy, reduced governmental accountability, contributed to corruption and administrative fragmentation, and complicated the consolidation of unified state authority. The study further shows that the relationship between party institutionalization and state-building is conditional rather than inherently positive or negative. Political parties can contribute to state-building when they are programmatic, socially rooted, organizationally autonomous, electorally accountable, and committed to common institutional rules. In Iraq, however, the persistence of quota-based governance has frequently transformed parties from intermediaries between society and the state into actors competing for institutional shares. Sustainable state-building therefore requires a transition from patronage- and identity-based competition toward programmatic party politics, stronger bureaucratic professionalism, clearer political accountability, and a more effective separation between partisan organization and state institutions.</p> https://jhrlp.com/index.php/jhrlp/article/download/464/446