Salon has a more in depth article on Drinky's mental state here. Pretty scary. And Billmon had this to say about Bush I and II's problems with communication.
Now the idea that the 43rd president of the United States may have a severe, probably undiagnosed, learning disability isn't a very original thought. (In his book, Dr. Levine also mentions that such disabilities sometimes seem inherited. Anyone who remembers 41's own ferocious, but losing, battles with the English language might suspect the same.)Classic.