Aspiring dominant-party regimes often institute major institutional and political reforms at the national level to ensure they retain control. However, subnational politics is an important, under-studied, component of regime consolidation. This study uses mayoral races in Hungary and Poland from 2006 to 2018 to examine two factors that may inhibit dominant-party regime consolidation in local politics: the use of two-round, i.e. runoff, electoral systems and strategic coordination among opposition parties. While we find little evidence that strategic coordination can lead to widespread opposition success in single-round systems, we do find that increasing the number of candidates decreases the likelihood of the nationally dominant party winning in the first round while not affecting the second round. As such, two-round mayoral elections may be an important buffer to dominant-party regime consolidation and may provide a training ground for the future opposition.

This article investigates accountability in South Africa’s dominant party system by studying how the African National Congress (ANC) reacts to electoral incentives at the local level. It compares the ANC’s degree of responsiveness to voters across municipalities with different levels of political competition. The analysis focuses on whether and under which conditions the ANC is more likely to renominate better quality municipal councillors. It examines the relationship between renomination as ANC municipal councillor and local government performance – as measured by voter signals, service delivery and audit outcomes. The results show that the ANC does indeed adapt its behaviour to electoral incentives. In municipalities where the ANC has larger margins of victory, performance matters little for renomination. In contrast, in municipalities with higher electoral competition, local government performance is strongly correlated with renomination. These results suggest the need to expand dominant party research to topics of voter responsiveness and sub-national behaviour.