Prove it!
Release his college transcripts.
They are hidden for a very good reason. You know darned well that if he graduated in the top half of his class, we would be reminded of it daily and his grades would have been news.
He graduated in the bottom half of his class if not right at the very bottom like McCain did... which is the most likely scenario.
Look at his dim-wit wife, her thesis is available online and the "bright wife" is dimmer than a glow-worm. Her thesis is riddled with grammar mistakes and written on a 3rd grade level.
Well, at least he reads the teleprompter good.............