Understanding why citizens support populist, radical, or extremist parties, movements, and leaders requires sustained attention to mass attitudes, identity formation, economic grievances, and cultural anxieties. This section brings together work using survey research, experimental methods, and qualitative approaches to examine the demand side of radical politics and democratic contestation. Contributions addressing voting behaviour, affective polarisation, public opinion on immigration and minority rights, and cross-national variation in susceptibility to radical appeals are especially welcome.
