Four things dominated the Supreme Court’s 2017–18 term: wedding cakes, immigration, unions—and amicus curiae. After a relatively quiet 2016–17 term, friends of the court roared back last term, with amici participating in every argued case and filing more briefs than ever.

In our eighth year analyzing the high court’s amicus curiae docket for the National Law Journal, we found that amici—organizations and individuals spanning the ideological spectrum—continued to garner attention, with the justices regularly citing amicus briefs in their opinions and even jousting over them during oral argument.

A FRIEND FOR ALL SEASONS (AND CASES)