In a number of recent studies researchers have argued that politicians appear to be more responsive towards citizens with high socioeconomic status. However, the mechanisms explaining this trend remain largely unexplored. In this paper we look closer at the role of political representatives as the key factor connecting citizens' opinions and policy changes. While the link between public opinion and elite opinion, as well as the link between public opinion and policy output is fairly well studied, few studies have looked at the entire relationship between public opinion, elite opinion and policy output. We combine data from Swedish election studies, surveys with members of parliament, and a database of policy change. We show that representatives' opinions reflect socioeconomically advantaged groups better than disadvantaged groups. We also find similar biases in policy responsiveness; policy changes correspond more closely to opinions of the advantaged groups.