Far-right parties and candidates have become prominent political actors in Western democracies, often targeting minority groups through exclusionary rhetoric. While the determinants of far-right success are well-studied, the social consequences of their electoral fortunes remain understudied, particularly for the minority groups they target in their rhetoric. This study examines how narrowly won elections by far-right candidates in the United States and France influence attitudinal and behavioral hostility toward minorities, measured through hate crimes and prejudicial attitudes. Using regression discontinuity designs, we plan to show that far-right success amplifies exclusionary rhetoric, legitimizes hostility, and fosters an environment where discrimination becomes more socially acceptable. By analyzing two distinct political contexts, we seek to provide comparative evidence on the consequences of far-right success and its broader implications for several groups of minorities in liberal democracies.