"There were also other deep personal bonds between JFK and McCarthy by the time McCarthy reached the peak of his power in 1952 and 1953. Not only had McCarthy been a frequent guest at the Kennedy compound in Hyannis, but McCarthy had also dated two Kenendy sisters, first Eunice (the mother of Maria Shriver) and then Pat (who later married actor Peter Lawford). McCarthy was invited to the wedding reception for Eunice and Sargent Shriver,"

"Though RFK would later have an intense falling out with McCarthy's other counsel Roy Cohn, the younger Kennedy brother would maintain a deep loyalty to a man he loved enough to make the godfather of his first child. In 1955, Bobby displayed his residual feelings of loyalty for McCarthy even after the Senator's fall into disgrace"

"[JFK] was the only Democratic Senator who didn't join in the censure of McCarthy."

Cohn is the attorney you love to hate because he represented Trump successfully.  Remember?  

"http://mcadams.posc.mu.edu/progjfk2.htm