as atrios points out, the best bit is not the percentage, but rather the single word association part of the poll:
Currently, 48% use a negative word to describe Bush compared with just 28% who use a positive term, and 10% who use neutral language.here's the full list of words given by respondents:
The changing impressions of the president can best be viewed by tracking over time how often words come up in these top-of-the-mind associations. Until now, the most frequently offered word to describe the president was "honest," but this comes up far less often today than in the past. Other positive traits such as "integrity" are also cited less, and virtually no respondent used superlatives such as "excellent" or "great" terms that came up fairly often in previous surveys.
The single word most frequently associated with George W. Bush today is "incompetent,"and close behind are two other increasingly mentioned descriptors: "idiot" and "liar." All three are mentioned far more often today than a year ago.
you'll note from the full list, things aren't all bad for the president. when asked to give a single-word description of the president, no one says "sucks" anymore like 7 people did a little over a year ago. "arrogant" has fallen by half since the last survey and "stupid" seems to be at an all-time low.
unfortunately for the prez, however, those small gains are outweighed by the surge in "ass," "jerk," "selfish" and "untrustworthy" on the lower end of the scale, none of which were present in any of the prior polls.