Despite sporadic claims that elections may serve as a referendum on the Supreme Court, prevailing theories of diffuse support imply that voters mostly ignore the Court. This paper tests that thesis. Using recent, nationally-representative survey data, Study 1 shows that, despite the Supreme Court being ranked as a middling issue of importance, high levels of diffuse support increase its perceived electoral relevance. Study 2 deploys a survey experiment, which illustrates that candidates who support (oppose) reform are viewed as stronger candidates among Democrats (Republicans), as well as more prototypically liberal (conservative). The sorting of demand for reform along partisan lines dovetails with a sorting of diffuse support, which presents an inherent irony for the prospects of reform: while low-legitimacy Democrats may support reform, lower levels of diffuse support are also linked to weaker perceptions of reform’s electoral relevance – providing mixed signals to candidates about the demand for reform.