This article considers the role of social movement allies in Congress in advancing proenvironmental legislation. We argue that compared to sponsors of legislation who hold moderate views, sponsors with extreme ideological positions will be less likely to produce legislation desired by the...

This article considers the role of social movement allies in Congress in advancing proenvironmental legislation. We argue that compared to sponsors of legislation who hold moderate views, sponsors with extreme ideological positions will be less likely to produce legislation desired by the...