Buchanan is the most prominent defender of accused Nazis in America. The most famous case is that of John Demanjuk, who was accused of being an infamous death camp guard named Ivan the Terrible. Buchanan proclaimed his innocence for years, against ample criticism, and felt vindicated when an Israeli court declared there was not enough evidence to convict Demanjuk of being Ivan.
Buchanan continues to declare that Demanjuk has been proved "innocent". Actually, a key piece of evidence (from German documents) that exonerated him as Ivan showed Demanjuk to be a willing guard at Sobibor, another extermination camp where 250,000 died. Even the National Review, while generally defending Demanjuk and Buchanan's support for him, concedes that "Demanjuk was probably guilty of being a lesser accomplice in the Nazi machinery of genocide. That is a fair summary of the Israeli court's findings."
More to the point, Demanjuk is only one of several accused Nazis Buchanan has defended in one way or another. These include Karl Linnas (Buchanan personally appealed to Ed Meese, then Attorney General, to block his deportation to the Soviet Union); Klaus Barbie (Buchanan did not oppose his trial, but argued the US should not have apologized to France for sheltering Barbie after WWII); Arthur Rudolph, a rocket scientist involved in slave labor and severe punishments at a German rocket factory (Buchanan argued his confession was a "lie" while acknowledging he was a "nominal member of the Nazi party and of the SA until 1934"); and Frank Walus (of all the accused, the one most likely innocent.)
One of the most striking examples is Kurt Waldheim, the disgraced former UN leader. Buchanan repeatedly attacked him during his tenure, but once his Nazi past came out, Pat complained that "the ostracism of President Waldheim [has] an aspect of moral bullying and the singular stench of selective indignation." He also rationalized that "like others in Hitler's army, Lt. Waldheim looked the other way."
In each of these cases, Buchanan found a factual reason to defend the accused, an appeal to justice. But put together, it is striking how often he rushes to the defense of accused Nazis. He has also attacked the US Justice Department's Office of Special Investigation (which pursues war criminals) more generally:
"You've got a great atrocity that occurred 35, 45 years ago.... Why... put millions of dollars [into] investigating that?"