I don't think anyone here said, "By the way, the Clinton administration did everything they could about terrorism." There were plenty of faults there, too. Don't put words in my (I'm assuming I'm one of the "Dems" referenced in your post, despite the fact that I have never been a registered Democrat in my life) mouth. That doesn't change the fact that Bush received explicit warnings directly before the attacks alerting him to their specific nature and time. They happened under his watch (or failure to watch) and so he gets the blame. If this was the Clinton administration, I would be saying the same things.