As US-China great power competition intensifies, public opinion polling may help gauge internal drivers of foreign policy decision-making. Using Pew Research Center data, we analyzed how Americans and Chinese perceived their own and each other’s countries between 2008-2016. We also compared these samples’ perceptions of current economic and future superpower leadership. While Chinese evaluated China more favorably than Americans evaluated the US, they also evaluated the US more favorably than Americans evaluated China. Among Americans, on average, Republicans viewed China less favorably and the US more favorably than Independents or Democrats. Although Chinese consistently viewed the US as the current economic leader, Chinese became increasingly optimistic about China’s prospects for future superpower preeminence over time. Conversely, American perceptions of America’s future status as a leading superpower became increasingly pessimistic over time, especially for Republicans and Independents. Republicans and Independents were also more optimistic about US economic leadership under Republican presidents, while Democrat perceptions were more consistent over time. We discuss our findings’ implications for US-China great power competition and in view of psychological theory.