Out‐party, out of Luck: Partisan Biases in Public Support for Due Process in Corruption Investigations

This study examines how public support for due process in corruption investigations is affected by partisan biases. Using a survey experiment conducted with a representative sample of Portuguese voters, it finds that voters' support for legally enshrined due process rights is conditional on their partisan alignment with the corruption suspects. Specifically, respondents exhibit greater support for due process protections for in‐party than for out‐party suspects, with out‐party derogation prevailing. By focusing on public attitudes towards legal fairness and horizontal accountability, these results expand our understanding of the role of partisan loyalties in accountability for corruption beyond their better‐known role in electoral processes.