Public support for protection is typically attributed to economic self-interest. Beyond pocketbook anxieties, a competing approach, however, contends that sociotropic attitudes dictate foreign policy preferences. Researchers, however, have faced difficulty in disentangling sociotropic attitudes from pocketbook concerns in observational studies. This article addresses this problem by utilizing a priming experiment to examine the relationship between socio and egotropic attitudes. In line with the predictions of the sociotropic framework, individuals are less certain about the egotropic effects of trade and sociotropic attitudes are found to influence egotropic perceptions by reducing uncertainty about the pocketbook effects of trade. In contrast, the study fails to find support for the hypothesis that individuals project egotropic concerns onto societal evaluations. The results of the study suggest that future research should pay careful consideration to the relationship between socio and egotropic attitudes when modeling and analyzing trade-policy preferences.