The litigation boutique Consovoy McCarthy, representing several Republican-led states hoping to derail the revival of the Equal Rights Amendment, filed court papers Wednesday that rely in part on an unlikely voice: Justice Ruth Bader Ginsburg.

The firm, which has been a leading advocate for President Donald Trump in court and has become more broadly a go-to firm for conservative legal causes, pointed to Ginsburg’s comments that the ratification effort needed to “start over again.”