Many people have wondered why President Bush doesn't defend his record more vigorously in the debates and attack Kerry's record, which is eminently vulnerable, more incisively. The answer, perhaps, is that Mr. Bush suffers from three rhetorical liabilities. First, he seems to assume that everybody already knows all the facts. He himself is immersed in matters of policy all day long, and it's easy for such a man to think that what's obvious to him is obvious to everybody. Perhaps he doesn't realize the depth of political ignorance and indifference that resides just outside the beltway. When, for example, he accuses John Kerry of being a "liberal", probably three quarters of citizens of voting age have no idea what he means.
Second, he's just not a quick thinker on his feet. His mind doesn't seem to work well when he's under the pressure of having to come up with gaffe-free answers in front of the whole nation. He no doubt works much better in intimate, relaxed settings where he can be himself, has time to consider options and think through problems.
Third, he's not particularly eloquent so that when he does know what he wants to say he has trouble putting it into words and using the appropriate inflections and gestures to drive the words home.
All of these liabilities work to his detriment in a debate setting, and it's quite surprising that his team didn't insist on the same sort of format that was used in the Cheney/Edwards debate which would have put him more at ease. It's also surprising that they didn't insist that he be allowed to use notes which would've made his task much less onerous.
None of this, mind you, should be taken as in any way a reflection upon his intelligence. Brilliant men have suffered the same sorts of disabilities, and absolute dolts can appear eloquent and articulate in public. Everyone is different in this respect. One reason why Viewpoint opposes Presidential debates is that they give the impression that the skills needed to do well in such events are somehow necessary qualifications for the presidency. That is not the case and never has been, and we do our nation a disservice by placing so much emphasis on the minutiae of these events.