before becoming a judge and even after was gung-ho for Plessy and while on the SC said there is a "plausible argument" for "separate but equal". By the time Scalia came along Leonard Leo was already well on the way with the plan to groom radical judges who would rule not on the law or precedent but rather invent twisted rationales in order to achieve a desired conclusion.
Rehnquist was a weasel through and through. Siding with Scalia the two were responsible for the now famous viewpoint in Herrera v Collins that once convicted a prisoner cannot bring a habeas claim based solely on claims of new evidence that shows innocence. He argued that there were other legal remedies at the lower levels of the courts. Of course his assumption would be that the lower courts would take the appeals and do their jobs correctly. We all know how that works. Scalia was very glib in his language about people facing execution when in one part of his argument he says that "with luck" the court would not have to face this "embarrassing" question again because he felt it was "improbable" that evidence of innocence would fail to get an executive pardon. Scalia said all of that without any acknowledgement of the actual past/current history of judicial/prosecutorial/executive misconduct in this country. The staggering gall of Scalia and his flippant and dismissive attitude towards people and the condescending language used has been championed/carried on by the current crop of garbage in black robes. This is how you get a supposed serious justice like Alito going back to the days of witches, wizards, spells and black cats for forming the basis for his decisions and language.