"Malaysia’s Pakatan Harapan government fell rapidly in late February 2020 as a result of coalition infighting and power struggles among the political elite. A major factor in the government’s sudden collapse was rising ethnoreligious tension between Muslim-Malay nationalists in the opposition and ethnic Chinese who formed part of the ruling coalition. Such tension appeared to have grown over the 22-month period of the multi-ethnic coalition government, leading to concern about political polarization and the potential for communal unrest in Malaysia. Malaysia follows a pattern seen recently in other countries (e.g., Indonesia, United States) where the rise to public office of a minority has been followed by an anti-pluralist backlash. Social media played an important role in Malaysia during this period in amplifying and reinforcing religious and ethnic-based appeals. An analysis of social media data shows that, by one measure, the volume of anti-Chinese sentiment online spiked in the days around the fall of the government. Although unrest was avoided during these events, more research is needed on the interplay between social media and polarization in Malaysia. The events leading to the fall of the Pakatan Harapan government indicate that Malaysia may be following the Indonesian trend, where the primary cleavage is not one of race but of religious conservatives versus cosmopolitan pluralists." (Executive summary)