21.  Graduate degrees bring additional debt.

22.  Graduate degrees in political science and law were assets, and the two spoke five languages between them.

23.  He also lists a graduate degree from Harvard in 1992.

24.  He also received a graduate degree from Columbia University in New York City.

25.  He earned a graduate degree in aeronautics and astronautics at the Massachusetts Institute of Technology and worked for seven years as a spacecraft design engineer.

26.  He got a graduate degree at Ohio State and became a teaching assistant there.

27.  He has graduate degrees from the Massachusetts Institute of Technology and Fairleigh Dickinson University.

28.  He began a graduate degree in philosophy, but then applied to Harvard Medical School.

29.  He holds a graduate degree from the University of Chicago.

30.  He also did best among voters with graduate degrees and those 18 to 25 years old.