Definitely, probably many. But a specific one I remember that is was like almost exactly a year ago he had an outright Nazi apologist on. Didn't deny the Holocaust but tried to excuse it. If I remember correctly, he claimed that "Judeo-Bolshevism" was a Soviet psyop that successfully tricked the Nazis into thinking that the Jews were actually acting as a fifth column for the Soviets, so the camps were originally intended as self-defense. But that guy also is okay with Israel, or at least both sides the conflict, so he can't be denounced as an anti-Semite.