Though pluralism and democracy are generally seen as being mutually supportive, recent developments in Indonesia suggest that they can also be in tension. Over the last five years, an old social cleavage separating pluralists from Islamists has been reactivated. In the 2019 presidential election, the incumbent, Joko Widodo, won by increasing support from religious minorities and traditionalist Muslims; his authoritarian-populist challenger, Prabowo Subianto, was backed by groups promoting a greater role for Islam in political life. Empowered by this socioreligious polarization, Widodo's government has relied on increasingly illiberal measures to contain the populist-Islamist alliance, undermining some of Indonesia's democratic achievements in the process.