The national symbol of the United States of America is the Bald Eagle (Haliaeetus leucocephalus) because it is imposing, majestic, soaring, and has a brain the size of a pea. All joking aside, I think 'President' Bush gets off too easily with the whole 'stupid' routine. Because he's not stupid. He's just evil.
Some commentators (derived from the Latin word commentatrium, meaning idiot) believe that the Iraq War was a big misunderstanding, and that Vice-President Cheney merely misheard the President, who didn't say, 'I gotta drop a bomb on Iraq,' but rather said, 'I gotta drop my mom at Tie Rack.'
So remember, athough he may be chimp-like in appearance and unable to pronounce simple words like 'nuclear', George Bush is actually a very fierce intellect, and is a world expert in areas as diverse as American History, Spanish vintage wines, and cowardice in times of war.