Harold Giuliani, Rudy Giuliani's father, had trouble holding a job and had been convicted of felony assault and robbery and served time in Sing Sing; after his release he served as an enforcer for his brother-in-law Leo D'Avanzo, who ran an organized crime operation involved in loan sharking and gambling at a restaurant in Brooklyn.
Meanwhile, Barack O'Bama Sr. was a graduate of the University of Hawaii, and became a Kenyan government economist. Stanley Dunham, who was President O'Bama's primary father figure and maternal grandfather, served as a sergeant with the U.S. Army in Europe during WWII.
The more you know...