Not sure how someone could be a member of the "ole South" fraternity Kappa Alpha for four years and not be aware of its racist past. Either he knew and didn't care (which is bad enough) or he was so blindered that he shouldn't be in public office.

https://www.thedailybeast.com/the-history-of-americas-most-racist-frat-was-no-secretexcept-to-joe-kennedy-iii