Well, first of all, just because Bush says that he doesn't want a draft doesn't mean that there won't be one if he's re-elected. That said, I still don't think there will be oneif that should come to pass. But the way things are going, it's something that seems quite possible, and so the Dems probably want to use it.
It's kind of like the whole "Kerry will raise taxes thing" that we keep hearing from the right. Given his record, it's quite possible, but he's said over and over that the tax cuts will stay for the middle class.
There's really no way to call BS
on it, because it's one person's word against another. It's not the first time fictional information and accusations have been used in elections, and it certainly won't be the last.