This article examines the effect of racial attitudes on the electoral performance of the New Democratic Party (NDP). Since 2017, the NDP has been led by Jagmeet Singh, the first non-white leader of a nationally competitive Canadian political party. Voters’ racial attitudes and the race of party leaders have a significant effect on vote choice in the United States. Less is known about whether similar effects exist in Canadian elections. I show that NDP vote choice polarized on the basis of racial attitudes following Singh's ascension to party leader. Voters with cold feelings toward racial minorities were less likely to vote for the NDP in 2019 and 2021 than in comparable historical elections. In contrast, there is no significant difference between 2019/2021 and prior elections in support for the Liberals and Conservatives among such voters. These results suggest that racial attitudes are salient in Canadian elections and that national parties may face an electoral penalty when selecting non-white party leaders.
