Hm. Well I read that article, and I think I'll just quote one part of it:
But intelligence is as intelligence does, as Forest Gump might remind us. Harvard has produced more than its share of great men and women, but it has also produced the Unabomber, Barney Frank, and Enron CEO Jeffrey Skilling...and now, the next James Buchanan.
For those who don't really want to read the whole thing, just reading that quote will basically sum up the entire article... random references to people who have nothing to do with Obama. And some particular fascination to James Buchanan.