#1 Clinton. Estimated IQ 186.
Last Place: George W Bush. Estimated IQ 91, lol.
Here's the article:
How smart is the president?
Les Robinson says: "I would be interested in hearing comments on this report by pro-Bush and anti-Bush WAISERs": In a report published 6/7/04, the Lovenstein Institute of Scranton, Pennsylvania, detailed its findings of a four-month study of the intelligence quotient of President George W. Bush. Since 1973, the Lovenstein Institute has published its research to the educational community on each new president, which includes the famous "IQ" report among others. There have been twelve presidents over the past 50 years, from F.D. Roosevelt to G. W. Bush, who were rated based on: 1. Scholarly achievements 2. Writings that they produced without aid of staff 3. Their ability to speak with clarity, and 4. Several other psychological factors which were then scored using the Swanson/Crain system of intelligence ranking.
The study determined the following IQs of each president as accurate to within five percentage points. In order by presidential term: 142 - Franklin Delano Roosevelt 132 - Harry S Truman 122 - Dwight David Eisenhower 174 - John Fitzgerald Kennedy 126 - Lyndon Baines Johnson 155 - Richard Milhous Nixon 121 - Gerald R. Ford 175 - James Earle Carter 105 - Ronald Wilson Reagan 098 - George Herbert Walker Bush 182 - William Jefferson Clinton 091 - George Walker Bush
In IQ order: 182 - William Jefferson Clinton 175 - James Earle Carter 174 - John Fitzgerald Kennedy 155 - Richard Milhous Nixon 147 - Franklin Delano Roosevelt 132 - Harry S Truman 126 - Lyndon Baines Johnson 122 - Dwight David Eisenhower 121 - Gerald R. Ford 105 - Ronald Wilson Reagan 098 - George Herbert Walker Bush 091 - George Walker Bush
The six Republican presidents of the past 50 years had an average IQ of 115.5, with President Nixon having the highest at 155. President George W. Bush rated the lowest of all the Republicans with an IQ of 91. The six Democrat presidents had IQs with an average of 156, with President Clinton having the highest IQ, at 182. President Lyndon B. Johnson was rated the lowest of all the Democrats with an IQ of 126. No president other than Carter [D] has released his actual IQ (176). Among comments made concerning the specific testing of President G. W. Bush, his low ratings are due to his apparently difficult command of the English language in public statements, his limited use of vocabulary [6,500 words for Bush versus an average of 11,000 words for other presidents], his lack of scholarly achievements other than a basic MBA, and an absence of any body of work which could be studied on an intellectual basis. The complete report documents the methods and procedures used to arrive at these ratings, including depth of sentence structure and voice stress confidence analysis.