The previous chapters demonstrated that liberal assimilationist norms are among the most powerful influences on American public opinion about immigration. Here, we examine two competing accounts of why this is so. As in the earlier chapters, we adjudicate between civic fairness and group-centrism. But having repeatedly shown that support for assimilation generally overrides ethnic group-centrism, we turn our attention to a different variety of group-centrism – one predicated on feelings of attachment to fellow members of the national ingroup and solidarity with immigrants who are seen as belonging within it.