How Political Contestation Over Judicial Nominations Polarizes Americans' Attitudes Toward the Supreme Court

Contemporary US Supreme Court nominations are unavoidably and inevitably political. Although observers worry that political contestation over nominations undermines support for qualified nominees and threatens the Court's legitimacy, there is little empirical evidence to support these claims. The authors argue that political contestation over judicial nominations provides cues that shape the public's impressions about nominees and the Court and polarizes public opinion across partisan lines. Data from a conjoint experiment administered in the first days of the Trump presidency support this argument. Political rhetoric attributed to President Trump and Senate Democrats substantially polarized partisans' views of nominees and evaluations of the Court's legitimacy, with Republicans (Democrats) expressing significantly more (less) favorable attitudes. Additional analyses suggest that contestation generates divergent partisan responses by affecting views about the nominee's impartiality. These findings challenge existing perspectives that depict attitudes toward the judiciary as resistant to partisan considerations and have important implications for the Court's legitimacy in a polarized era.