The study was on the DoJ website; I can confirm this, because I looked it up twice after two different right-wing terror attacks in the US. The first time was after my church was shot up by someone who had been listening to right wing hate radio. Scrubbing it was purely to support Trump lies.
The U.S. Department of Justice quietly scrubbed a study from its website that confirmed that far-right extremists have carried out more ideologically motivated killings in the United States than any other group. An archived version of the study still remains online. web.archive.org/web/20250911...