Populism and the Erosion of Democratic Checks and Balances: A Systematic Literature Review across Regions

Populism has emerged as a significant challenge to democratic governance worldwide, as populist leaders seek to undermine checks and balances and consolidate power. This systematic literature review analyzes how populist movements weaken democratic institutions across different regions, focusing on the erosion of judicial independence, legislative oversight, media freedom, and human rights. This study examines case studies from Hungary, Turkey, Brazil, and the United States, revealing how populist leaders centralize authority, manipulate legal frameworks, and exploit societal grievances to sideline democratic norms. Populist rhetoric often frames democratic institutions as elitist and detached from the interests of the "true people," justifying actions that concentrate executive power and limit accountability. This impact extends beyond national borders and affects international law and global governance. In response, civil society, independent judiciaries, the media, academia, and international organizations play crucial roles in defending democratic values and building resilience against populist encroachment. Strategies such as enhancing legal protection, promoting civic education, strengthening oversight bodies, and reforming electoral systems are essential for countering populist threats. This study highlights the need for a multifaceted approach to address the root causes of populism's appeal and protect democratic institutions. Further research should explore how populists exploit digital media and the effectiveness of resistance strategies and conduct comparative analyses across regions to develop robust defenses against the erosion of democracy.