Originally Posted by ADL Colin

President Highest Rating Lowest Rating
Harry Truman 87% 23%
Dwight Eisenhower 79% 48%
John F. Kennedy 83% 56%
Lyndon Johnson 79% 35%
Richard Nixon 67% 24%
Gerald Ford 71% 37%
Jimmy Carter 75% 28%
Ronald Reagan 68% 35%
George H.W. Bush 89% 29%
Bill Clinton 73% 37%
George W. Bush 90% 29%

Answer. George W. Bush
Source: http://www.infoplease.com/spot/presrankings1.html