So there's actually a comparison here.
DH has a bachelor's and a MS in computer science, and did both in 7.5 years, which is about the same as a pre-law and a JD. DH also went to a state school, as an instate resident, as did Rubio. Their states are similar in economics and in costs of living.
DH's undergrad tuition was $2100 per semester, and $2800 per semester of grad school. Living expenses were around $6000 per year. (He either had roommates or lived in typical student digs, which sometimes sucked mightily.)
Math is: 8(2100) + 7(2800) + 7.5(6000) = $81,400
Now, DH had a) a partial tuition scholarship equal to about half of his annual tuition and b) served in the first Iraq adventure in the National Guard, so was eligible for the GI Bill, and c) did work study and d) was in CompSci, so had a grad school fellowship that paid his grad school tuition and thus came out with no debt. (I'm 5 years younger and had full scholarships, so my numbers are even less useful.)
My question for Rubio is WTF was he doing that he spent so much? Did he not rate a single scholarship? Did he never serve grub or scrub a floor or make calls for the development office? Why didn't he take the one weekend a month and two weeks a summer opportunity that the FNG offers? Florida had a program in place in the late 80s that gave every student who graduated in the top 20% of their high school class a full tuition scholarship to a state university. (Living expenses were the student's responsibility.) Why didn't Rubio take advantage of that? Or did he not qualify?
Seriously, if he racked up over $100K, that tells me he wasn't very good at managing his money -- and that tells me that I don't want him anywhere near our collective money.