Giancana sent Johnny Roselli and another man to Hyannis report to ask Joe to remind his boys that the Chicago mob had helped them win, especially the WV primary which put Humphrey back on second place and in getting votes out in major cities like Chicago.
Joe said she would talk to them at Christmas when the family would be together. He stroked out before then and the talk probably never happened since he was very disabled.
This is the basis for the mafia motivation to kill JFK.
Hyannis PORT