Must have studied hard for that GPA or he had special help as in he cheated and knowing how affirmative action worked to get him there, I'd say it was lax standards or had the answers. Even during the third debate when he had somebody whispering in his ear(s) or during speeches given, he couldn't be trusted to go off the TOTUS before he'd say something arcane.
Thinking isn't his strong suit and the proof of this is his to embracement socialism knowing it doesn't or cannot work is evidence of stupidity not intellect.