When people support voter identification (ID) laws, who do they imagine they are keeping in and out of the voting booth? We investigated this question across three studies. First, using a traditional survey approach, we found support for voter ID laws was associated with beliefs that ID requirements reduce illegal voting by both Black and White people to the same degree. Because explicit surveys are vulnerable to social desirability concerns, in the following two studies, we utilized an indirect measure, reverse correlation, to investigate mental images of those who try to vote illegally (Study 2) and mental images of those who should and should not get to vote (Study 3). The findings of these studies suggest that support for voter ID laws is associated with racially biased perceptions of illegal voters and who should get to vote. Critically, these biased perceptions may be underestimated by traditional explicit survey approaches.