A growing literature suggests that interminority conflict is an increasingly important component of interethnic/interracial dynamics. Interminority conflict theory predicts: (1) the spatial proximity of ethnic/racial groups is directly related to animosity between the groups and (2) interminority animosity will be greatest among the poorest segments of the population. Using data from the 1994 Los Angeles Times California Exit Poll and the U.S. Census, I evaluate these hypotheses in the context of African American voting on California's Proposition 187. The data provide no support for the interminority conflict perspective. Proximity to significant Asian populations tended to reduce African American support for 187, while proximity to significant Hispanic populations had no impact on vote choice. Similarly improvement in personal financial outlook was positively related to support for Proposition 187. These findings insinuate that interminority conflict-at the individual level-may by rarer than the interminority conflict literature suggests. One of the most contentious issues on the national political agenda is the issue of immigrant access to social services. The national-level prominence of this issue became manifest in the debate over the 1995 overhaul of the welfare system-particularly in the discussion, and subsequent passage, of restrictions on social service provision for documented and undocumented migrants. A harbinger of the migrant-related components of welfare reform was the 1994 passage of Proposition 187 in California-an initiative designed to bar undocumented migrant access to state-level social service programs, health care services (excepting emergency care), and public education at the elementary, secondary, and post-secondary levels.1 Given the size of the migrant population in California-particularly the undocumented migrant population (Hernandez and Robinson 1995)-California's leadership in this area is not surprising. Just as disputes concerning immigration have strong racial/ethnic overtones (Edmonston and Passel 1994), the controversy over the provision of social services to migrants (documented and undocumented) is a racially charged issue. If more generous social policies foster further immigration, then those policies lead to an increase in the relative size of the Hispanic and Asian populations in the U.S. More conservative policies toward social service provision might reasonably be expected to check the relative advantage accruing to these population groups. Thus, the level of social services available to migrants may impact the racial/ ethnic composition of the U.S. population. Not surprisingly, the demographic impact of immigration policy decisions has significant political implications. As the relative size of the Asian and Hispanic populations increases, a redistribution of resources and government services from Anglos and Blacks to Asians and Hispanics is likely Likewise, some existing problems (e.g. unemployment) may be exacerbated. And the impact of immigration policies will not be limited to a specific set of restricted locales. Since states with large migrant populations also tend to have large populations in general (California, Texas, Florida, and New York, for example)-and thus control large numbers of electoral votes and seats in Congress-immigration policy choices will affect national politics. Given these circumstances, the demographic implications of immigration policy choices may foster and/or exacerbate interracial competition. Though much of the research on interracial dynamics focuses on interactions between minorities and Anglos (tiles 1977; tiles and Evans 1985, 1986; tiles and Hertz 1994; Glasser 1994; Key 1949; Sigelman et al. 1996; Sigelman and Welch 1993; Wright 1977), a growing body of literature examines the character of interminority interactions, particularly in what are considered "competitive" situations" (Falcon 1988; MacManus and Cassel 1982; McClain 1993; McClain and Karnig 1990; McClain and Tauber 1998; Meier and Stewart 1991; Oliver and Johnson 1984; Olzak 1992; Welch, Karnig, and Eribes 1983). …