Your Bush Derangement Syndrome has made you forget that Guantanamo and in fact the prisoners in general became a political cause with the left almost immediately. It took years to even get permission to try them at all; initially, the plan was for fairly speedy military tribunals, but the left didn’t like that and filed challenge after challenge. Since we have a system based on laws, all of those had to be answered first.
Then the left began on other angles (”torture,” “renditions,” etc.) and finally it wasn’t even clear how these people were going to be punished if found guilty.
If it had been up to Bush, these people would have been tried and dealt with as soon as they landed.
I don’t know where you were for the last four years. These ongoing legal battles were in the papers every day.
I don't believe that Bush did enough in as speedy a fashion as he could have done with the Gitmo terrorists. He also didn't see to it that Iran is not going to get a nuclear weapon, as he promised on live television more than once. But he did manage to keep us free from a major terrorist attack after 9/11. We'll have to see if Obama will be able to make a similar claim after his run is done.