Internally Deformed
Farseer of the Paranormal Abysm
I suppose it depends what you mean by dumb. He probably isn't (much) dumber than the average person, but by the standards of a world leader he was pretty sub-par. Obama could run rings around the guy, as could pretty much every British PM with the possible exception of Margaret Thatcher (who substituted obstinacy and willpower for intelligence - to devastating effect).