A 2006 article in Political Psychology attempts to use objective information to figure this out. J.Q. Adams probably had the highest IQ (165), Warren Harding probably had the lowest (107). GW Bush was around 111, Reagan was about 118. Clinton was about 135. In terms of "intellectual brilliance," Jefferson ranks far ahead of anyone.
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Historians ranked these presidents as having the highest IQs: John Quincy Adams, Thomas Jefferson, Woodrow Wilson, and Bill Clinton.
As far as the lowest IQ goes: W. H.Harrison, Harding, Reagan, G.W. Bush.
Ratings of many differant types of intelligence:
Pure IQ - Wilson, Clinton.
Understanding what Americans want to hear - Reagan
Knowing how to act in a tough situation - Franklin D Roosevelt and John F. Kennedy.
Making the right choice for the country, despite the consequence - Lincoln
Looking ahead to the future- Eisenhower (Al Gore, Vice President, also has a high IQ and would be the top rated in this category had he won the 2000 election)
Jefferson
The lists of smartest animals vary a lot, but no, pigs are not the fourth smartest -- more like seventh, eighth or ninth
mr. einstien
i think Mary
Most likely Linus
oh yea!!!
AS the US has only one president it must be whoever is the present incumbant.
Woodrow Wilson
Woodrow Wilson
Aberham Lincoln
unknown
John F. Kennedy
Mommy, Daddy, Teacher, President
Marilyn vos Savant with a 228 IQ
they are used in labs and are one of the smartest monkeys
Davante Carter 8th, Tashiana Lipscomb 6th
They are a lot like us! they are the second smartest mamal in the world!
the superlative of smart is smartest