“…We can also leverage the theoretical foundation laid by studies of roll call voting on Supreme Court nominees, in particular the model developed in Cameron, Cover and Segal (1990). That model, as well as much subsequent work (see e.g., Epstein et al 2006, Cameron, Kastellec andPark 2013), shows that senators are more likely to oppose nominees who are more ideologically distant, as well as those lacking in legal qualifications, or "quality." We use these variables to uncover whether interest group mobilization displays similar tendencies.…”