(Warning: movie and sound files)
This video clip of Dubya (click here for the smaller version) demonstrates how the President's speaking abilities have deteriorated over the past ten to eleven years.
(You may need speakers to hear it, the sound is very very faint).
So this would seem to negate both the claims that Bush is just stupid, and the claims that he is being unfairly maligned for his poor speaking (as anyone can see by comparison how poorly he speaks now compared to how he spoke ten years ago).
Thanx and a tip o' the hat to The Center for Advanced Sarcasm.
That is all.