That's completely and utterly false -- but it doesn't stop it from appearing on this forum numerous times per day.
You're right. There's a strategy at work here, and having W nattering on continuously until people can no longer hear him is not the way to further it.
What Bush has done is to let the D's natter on until people don't hear them, and now he's forcibly reminding folks about the really stupid things they're saying and doing.
Politics isn't a precise business, so this might not be fully effective. But it is certainly going to be highly effective, and that's about as good as W can hope for.