For the second time in recent months, Justices Ruth Bader Ginsburg and Neil Gorsuch engaged in dueling interpretations of federal law—but this time, the freshman justice prevailed over his senior colleague in his first major opinion.

The two justices went toe-to-toe in January in Artis v. District of Columbia, which involved interpretation of the tolling provision in the federal supplemental jurisdiction statute. Gorsuch in dissent presented a list of “absurdities” that would follow Ginsburg’s interpretation for the court’s majority. Ginsburg dismissed Gorsuch’s “history lesson” on the common-law principle that he argued supported his interpretation.