Mainstream and alternative media often frame key political events in divergent ways. The present research examined how mainstream and alternative media consumption was linked to public support for Bersih, a pro-democracy movement in Malaysia. We conducted a two-wave panel study before and after the Bersih 5 protests demanding electoral reform ( N = 422), and another two-wave panel study before and after the 14th General Elections which were historic in unseating the ruling government ( N = 386). Against mounting corruption, the two events were important to Malaysia’s democratic transition. Across both studies, alternative media consumption was linked to more positive attitudes toward the Bersih movement, especially among people who were strong supporters of the previous ruling government. Mainstream media did not play a consistent role in shaping attitudes toward the movement, nor was there evidence of backlash among government supporters. Thus, alternative media may have legitimized the cause for social change.