It is correct to question those claims!
I got them from an anti-Buchannon website, and obviously partisan stuff like that should be taken with a grain of salt. (I only posted what I thought were the most believable and verifiable claims from a much longer list. I should have posted a link. Sorry.)
However, it is true that a number of Jewish organizations think of the guy as having a tendency to apologize for Nazis and say negative things about Jews. I would defer to their expertise in this matter because they watch for this sort of behavior constantly.
